Problem:


Score : 400 points

Problem Statement

We say that a odd number N is similar to 2017 when both N and (N+1)/2 are prime.

You are given Q queries.

In the i-th query, given two odd numbers l_i and r_i, find the number of odd numbers x similar to 2017 such that l_i ≤ x ≤ r_i.

Constraints

1≤Q≤10^5

1≤l_i≤r_i≤10^5

l_i and r_i are odd.

All input values are integers.

Input

Input is given from Standard Input in the following format:

Q
l_1 r_1
:
l_Q r_Q

Output

Print Q lines. The i-th line (1≤i≤Q) should contain the response to the i-th query.

Sample Input 1

1
3 7

Sample Output 1

2

3 is similar to 2017, since both 3 and (3+1)/2=2 are prime.

5 is similar to 2017, since both 5 and (5+1)/2=3 are prime.

7 is not similar to 2017, since (7+1)/2=4 is not prime, although 7 is prime.

Thus, the response to the first query should be 2.

Sample Input 2

4
13 13
7 11
7 11
2017 2017

Sample Output 2

1
0
0
1

Note that 2017 is also similar to 2017.

Sample Input 3

6
1 53
13 91
37 55
19 51
73 91
13 49

Sample Output 3

4
4
1
1
1
2



Sample input:
1
3 7


Sample output:
2

Submission status: Runtime Error

Solution code:
import numpy as np
sosuu = np.array([2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61,
         67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137,
         139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211,
         223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283,
         293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379,
         383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461,
         463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563,
         569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643,
         647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739,
         743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829,
         839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937,
         941, 947, 953, 967, 971, 977, 983, 991, 997, 1009, 1013, 1019, 1021,
         1031, 1033, 1039, 1049, 1051, 1061, 1063, 1069, 1087, 1091, 1093,
         1097, 1103, 1109, 1117, 1123, 1129, 1151, 1153, 1163, 1171, 1181,
         1187, 1193, 1201, 1213, 1217, 1223, 1229, 1231, 1237, 1249, 1259,
         1277, 1279, 1283, 1289, 1291, 1297, 1301, 1303, 1307, 1319, 1321,
         1327, 1361, 1367, 1373, 1381, 1399, 1409, 1423, 1427, 1429, 1433,
         1439, 1447, 1451, 1453, 1459, 1471, 1481, 1483, 1487, 1489, 1493,
         1499, 1511, 1523, 1531, 1543, 1549, 1553, 1559, 1567, 1571, 1579,
         1583, 1597, 1601, 1607, 1609, 1613, 1619, 1621, 1627, 1637, 1657,
         1663, 1667, 1669, 1693, 1697, 1699, 1709, 1721, 1723, 1733, 1741,
         1747, 1753, 1759, 1777, 1783, 1787, 1789, 1801, 1811, 1823, 1831,
         1847, 1861, 1867, 1871, 1873, 1877, 1879, 1889, 1901, 1907, 1913,
         1931, 1933, 1949, 1951, 1973, 1979, 1987, 1993, 1997, 1999, 2003,
         2011, 2017, 2027, 2029, 2039, 2053, 2063, 2069, 2081, 2083, 2087,
         2089, 2099, 2111, 2113, 2129, 2131, 2137, 2141, 2143, 2153, 2161,
         2179, 2203, 2207, 2213, 2221, 2237, 2239, 2243, 2251, 2267, 2269,
         2273, 2281, 2287, 2293, 2297, 2309, 2311, 2333, 2339, 2341, 2347,
         2351, 2357, 2371, 2377, 2381, 2383, 2389, 2393, 2399, 2411, 2417,
         2423, 2437, 2441, 2447, 2459, 2467, 2473, 2477, 2503, 2521, 2531,
         2539, 2543, 2549, 2551, 2557, 2579, 2591, 2593, 2609, 2617, 2621,
         2633, 2647, 2657, 2659, 2663, 2671, 2677, 2683, 2687, 2689, 2693,
         2699, 2707, 2711, 2713, 2719, 2729, 2731, 2741, 2749, 2753, 2767,
         2777, 2789, 2791, 2797, 2801, 2803, 2819, 2833, 2837, 2843, 2851,
         2857, 2861, 2879, 2887, 2897, 2903, 2909, 2917, 2927, 2939, 2953,
         2957, 2963, 2969, 2971, 2999, 3001, 3011, 3019, 3023, 3037, 3041,
         3049, 3061, 3067, 3079, 3083, 3089, 3109, 3119, 3121, 3137, 3163,
         3167, 3169, 3181, 3187, 3191, 3203, 3209, 3217, 3221, 3229, 3251,
         3253, 3257, 3259, 3271, 3299, 3301, 3307, 3313, 3319, 3323, 3329,
         3331, 3343, 3347, 3359, 3361, 3371, 3373, 3389, 3391, 3407, 3413,
         3433, 3449, 3457, 3461, 3463, 3467, 3469, 3491, 3499, 3511, 3517,
         3527, 3529, 3533, 3539, 3541, 3547, 3557, 3559, 3571, 3581, 3583,
         3593, 3607, 3613, 3617, 3623, 3631, 3637, 3643, 3659, 3671, 3673,
         3677, 3691, 3697, 3701, 3709, 3719, 3727, 3733, 3739, 3761, 3767,
         3769, 3779, 3793, 3797, 3803, 3821, 3823, 3833, 3847, 3851, 3853,
         3863, 3877, 3881, 3889, 3907, 3911, 3917, 3919, 3923, 3929, 3931,
         3943, 3947, 3967, 3989, 4001, 4003, 4007, 4013, 4019, 4021, 4027,
         4049, 4051, 4057, 4073, 4079, 4091, 4093, 4099, 4111, 4127, 4129,
         4133, 4139, 4153, 4157, 4159, 4177, 4201, 4211, 4217, 4219, 4229,
         4231, 4241, 4243, 4253, 4259, 4261, 4271, 4273, 4283, 4289, 4297,
         4327, 4337, 4339, 4349, 4357, 4363, 4373, 4391, 4397, 4409, 4421,
         4423, 4441, 4447, 4451, 4457, 4463, 4481, 4483, 4493, 4507, 4513,
         4517, 4519, 4523, 4547, 4549, 4561, 4567, 4583, 4591, 4597, 4603,
         4621, 4637, 4639, 4643, 4649, 4651, 4657, 4663, 4673, 4679, 4691,
         4703, 4721, 4723, 4729, 4733, 4751, 4759, 4783, 4787, 4789, 4793,
         4799, 4801, 4813, 4817, 4831, 4861, 4871, 4877, 4889, 4903, 4909,
         4919, 4931, 4933, 4937, 4943, 4951, 4957, 4967, 4969, 4973, 4987,
         4993, 4999, 5003, 5009, 5011, 5021, 5023, 5039, 5051, 5059, 5077,
         5081, 5087, 5099, 5101, 5107, 5113, 5119, 5147, 5153, 5167, 5171,
         5179, 5189, 5197, 5209, 5227, 5231, 5233, 5237, 5261, 5273, 5279,
         5281, 5297, 5303, 5309, 5323, 5333, 5347, 5351, 5381, 5387, 5393,
         5399, 5407, 5413, 5417, 5419, 5431, 5437, 5441, 5443, 5449, 5471,
         5477, 5479, 5483, 5501, 5503, 5507, 5519, 5521, 5527, 5531, 5557,
         5563, 5569, 5573, 5581, 5591, 5623, 5639, 5641, 5647, 5651, 5653,
         5657, 5659, 5669, 5683, 5689, 5693, 5701, 5711, 5717, 5737, 5741,
         5743, 5749, 5779, 5783, 5791, 5801, 5807, 5813, 5821, 5827, 5839,
         5843, 5849, 5851, 5857, 5861, 5867, 5869, 5879, 5881, 5897, 5903,
         5923, 5927, 5939, 5953, 5981, 5987, 6007, 6011, 6029, 6037, 6043,
         6047, 6053, 6067, 6073, 6079, 6089, 6091, 6101, 6113, 6121, 6131,
         6133, 6143, 6151, 6163, 6173, 6197, 6199, 6203, 6211, 6217, 6221,
         6229, 6247, 6257, 6263, 6269, 6271, 6277, 6287, 6299, 6301, 6311,
         6317, 6323, 6329, 6337, 6343, 6353, 6359, 6361, 6367, 6373, 6379,
         6389, 6397, 6421, 6427, 6449, 6451, 6469, 6473, 6481, 6491, 6521,
         6529, 6547, 6551, 6553, 6563, 6569, 6571, 6577, 6581, 6599, 6607,
         6619, 6637, 6653, 6659, 6661, 6673, 6679, 6689, 6691, 6701, 6703,
         6709, 6719, 6733, 6737, 6761, 6763, 6779, 6781, 6791, 6793, 6803,
         6823, 6827, 6829, 6833, 6841, 6857, 6863, 6869, 6871, 6883, 6899,
         6907, 6911, 6917, 6947, 6949, 6959, 6961, 6967, 6971, 6977, 6983,
         6991, 6997, 7001, 7013, 7019, 7027, 7039, 7043, 7057, 7069, 7079,
         7103, 7109, 7121, 7127, 7129, 7151, 7159, 7177, 7187, 7193, 7207,
         7211, 7213, 7219, 7229, 7237, 7243, 7247, 7253, 7283, 7297, 7307,
         7309, 7321, 7331, 7333, 7349, 7351, 7369, 7393, 7411, 7417, 7433,
         7451, 7457, 7459, 7477, 7481, 7487, 7489, 7499, 7507, 7517, 7523,
         7529, 7537, 7541, 7547, 7549, 7559, 7561, 7573, 7577, 7583, 7589,
         7591, 7603, 7607, 7621, 7639, 7643, 7649, 7669, 7673, 7681, 7687,
         7691, 7699, 7703, 7717, 7723, 7727, 7741, 7753, 7757, 7759, 7789,
         7793, 7817, 7823, 7829, 7841, 7853, 7867, 7873, 7877, 7879, 7883,
         7901, 7907, 7919, 7927, 7933, 7937, 7949, 7951, 7963, 7993, 8009,
         8011, 8017, 8039, 8053, 8059, 8069, 8081, 8087, 8089, 8093, 8101,
         8111, 8117, 8123, 8147, 8161, 8167, 8171, 8179, 8191, 8209, 8219,
         8221, 8231, 8233, 8237, 8243, 8263, 8269, 8273, 8287, 8291, 8293,
         8297, 8311, 8317, 8329, 8353, 8363, 8369, 8377, 8387, 8389, 8419,
         8423, 8429, 8431, 8443, 8447, 8461, 8467, 8501, 8513, 8521, 8527,
         8537, 8539, 8543, 8563, 8573, 8581, 8597, 8599, 8609, 8623, 8627,
         8629, 8641, 8647, 8663, 8669, 8677, 8681, 8689, 8693, 8699, 8707,
         8713, 8719, 8731, 8737, 8741, 8747, 8753, 8761, 8779, 8783, 8803,
         8807, 8819, 8821, 8831, 8837, 8839, 8849, 8861, 8863, 8867, 8887,
         8893, 8923, 8929, 8933, 8941, 8951, 8963, 8969, 8971, 8999, 9001,
         9007, 9011, 9013, 9029, 9041, 9043, 9049, 9059, 9067, 9091, 9103,
         9109, 9127, 9133, 9137, 9151, 9157, 9161, 9173, 9181, 9187, 9199,
         9203, 9209, 9221, 9227, 9239, 9241, 9257, 9277, 9281, 9283, 9293,
         9311, 9319, 9323, 9337, 9341, 9343, 9349, 9371, 9377, 9391, 9397,
         9403, 9413, 9419, 9421, 9431, 9433, 9437, 9439, 9461, 9463, 9467,
         9473, 9479, 9491, 9497, 9511, 9521, 9533, 9539, 9547, 9551, 9587,
         9601, 9613, 9619, 9623, 9629, 9631, 9643, 9649, 9661, 9677, 9679,
         9689, 9697, 9719, 9721, 9733, 9739, 9743, 9749, 9767, 9769, 9781,
         9787, 9791, 9803, 9811, 9817, 9829, 9833, 9839, 9851, 9857, 9859,
         9871, 9883, 9887, 9901, 9907, 9923, 9929, 9931, 9941, 9949, 9967,
         9973, 10007, 10009, 10037, 10039, 10061, 10067, 10069, 10079, 10091,
         10093, 10099, 10103, 10111, 10133, 10139, 10141, 10151, 10159, 10163,
         10169, 10177, 10181, 10193, 10211, 10223, 10243, 10247, 10253, 10259,
         10267, 10271, 10273, 10289, 10301, 10303, 10313, 10321, 10331, 10333,
         10337, 10343, 10357, 10369, 10391, 10399, 10427, 10429, 10433, 10453,
         10457, 10459, 10463, 10477, 10487, 10499, 10501, 10513, 10529, 10531,
         10559, 10567, 10589, 10597, 10601, 10607, 10613, 10627, 10631, 10639,
         10651, 10657, 10663, 10667, 10687, 10691, 10709, 10711, 10723, 10729,
         10733, 10739, 10753, 10771, 10781, 10789, 10799, 10831, 10837, 10847,
         10853, 10859, 10861, 10867, 10883, 10889, 10891, 10903, 10909, 10937,
         10939, 10949, 10957, 10973, 10979, 10987, 10993, 11003, 11027, 11047,
         11057, 11059, 11069, 11071, 11083, 11087, 11093, 11113, 11117, 11119,
         11131, 11149, 11159, 11161, 11171, 11173, 11177, 11197, 11213, 11239,
         11243, 11251, 11257, 11261, 11273, 11279, 11287, 11299, 11311, 11317,
         11321, 11329, 11351, 11353, 11369, 11383, 11393, 11399, 11411, 11423,
         11437, 11443, 11447, 11467, 11471, 11483, 11489, 11491, 11497, 11503,
         11519, 11527, 11549, 11551, 11579, 11587, 11593, 11597, 11617, 11621,
         11633, 11657, 11677, 11681, 11689, 11699, 11701, 11717, 11719, 11731,
         11743, 11777, 11779, 11783, 11789, 11801, 11807, 11813, 11821, 11827,
         11831, 11833, 11839, 11863, 11867, 11887, 11897, 11903, 11909, 11923,
         11927, 11933, 11939, 11941, 11953, 11959, 11969, 11971, 11981, 11987,
         12007, 12011, 12037, 12041, 12043, 12049, 12071, 12073, 12097, 12101,
         12107, 12109, 12113, 12119, 12143, 12149, 12157, 12161, 12163, 12197,
         12203, 12211, 12227, 12239, 12241, 12251, 12253, 12263, 12269, 12277,
         12281, 12289, 12301, 12323, 12329, 12343, 12347, 12373, 12377, 12379,
         12391, 12401, 12409, 12413, 12421, 12433, 12437, 12451, 12457, 12473,
         12479, 12487, 12491, 12497, 12503, 12511, 12517, 12527, 12539, 12541,
         12547, 12553, 12569, 12577, 12583, 12589, 12601, 12611, 12613, 12619,
         12637, 12641, 12647, 12653, 12659, 12671, 12689, 12697, 12703, 12713,
         12721, 12739, 12743, 12757, 12763, 12781, 12791, 12799, 12809, 12821,
         12823, 12829, 12841, 12853, 12889, 12893, 12899, 12907, 12911, 12917,
         12919, 12923, 12941, 12953, 12959, 12967, 12973, 12979, 12983, 13001,
         13003, 13007, 13009, 13033, 13037, 13043, 13049, 13063, 13093, 13099,
         13103, 13109, 13121, 13127, 13147, 13151, 13159, 13163, 13171, 13177,
         13183, 13187, 13217, 13219, 13229, 13241, 13249, 13259, 13267, 13291,
         13297, 13309, 13313, 13327, 13331, 13337, 13339, 13367, 13381, 13397,
         13399, 13411, 13417, 13421, 13441, 13451, 13457, 13463, 13469, 13477,
         13487, 13499, 13513, 13523, 13537, 13553, 13567, 13577, 13591, 13597,
         13613, 13619, 13627, 13633, 13649, 13669, 13679, 13681, 13687, 13691,
         13693, 13697, 13709, 13711, 13721, 13723, 13729, 13751, 13757, 13759,
         13763, 13781, 13789, 13799, 13807, 13829, 13831, 13841, 13859, 13873,
         13877, 13879, 13883, 13901, 13903, 13907, 13913, 13921, 13931, 13933,
         13963, 13967, 13997, 13999, 14009, 14011, 14029, 14033, 14051, 14057,
         14071, 14081, 14083, 14087, 14107, 14143, 14149, 14153, 14159, 14173,
         14177, 14197, 14207, 14221, 14243, 14249, 14251, 14281, 14293, 14303,
         14321, 14323, 14327, 14341, 14347, 14369, 14387, 14389, 14401, 14407,
         14411, 14419, 14423, 14431, 14437, 14447, 14449, 14461, 14479, 14489,
         14503, 14519, 14533, 14537, 14543, 14549, 14551, 14557, 14561, 14563,
         14591, 14593, 14621, 14627, 14629, 14633, 14639, 14653, 14657, 14669,
         14683, 14699, 14713, 14717, 14723, 14731, 14737, 14741, 14747, 14753,
         14759, 14767, 14771, 14779, 14783, 14797, 14813, 14821, 14827, 14831,
         14843, 14851, 14867, 14869, 14879, 14887, 14891, 14897, 14923, 14929,
         14939, 14947, 14951, 14957, 14969, 14983, 15013, 15017, 15031, 15053,
         15061, 15073, 15077, 15083, 15091, 15101, 15107, 15121, 15131, 15137,
         15139, 15149, 15161, 15173, 15187, 15193, 15199, 15217, 15227, 15233,
         15241, 15259, 15263, 15269, 15271, 15277, 15287, 15289, 15299, 15307,
         15313, 15319, 15329, 15331, 15349, 15359, 15361, 15373, 15377, 15383,
         15391, 15401, 15413, 15427, 15439, 15443, 15451, 15461, 15467, 15473,
         15493, 15497, 15511, 15527, 15541, 15551, 15559, 15569, 15581, 15583,
         15601, 15607, 15619, 15629, 15641, 15643, 15647, 15649, 15661, 15667,
         15671, 15679, 15683, 15727, 15731, 15733, 15737, 15739, 15749, 15761,
         15767, 15773, 15787, 15791, 15797, 15803, 15809, 15817, 15823, 15859,
         15877, 15881, 15887, 15889, 15901, 15907, 15913, 15919, 15923, 15937,
         15959, 15971, 15973, 15991, 16001, 16007, 16033, 16057, 16061, 16063,
         16067, 16069, 16073, 16087, 16091, 16097, 16103, 16111, 16127, 16139,
         16141, 16183, 16187, 16189, 16193, 16217, 16223, 16229, 16231, 16249,
         16253, 16267, 16273, 16301, 16319, 16333, 16339, 16349, 16361, 16363,
         16369, 16381, 16411, 16417, 16421, 16427, 16433, 16447, 16451, 16453,
         16477, 16481, 16487, 16493, 16519, 16529, 16547, 16553, 16561, 16567,
         16573, 16603, 16607, 16619, 16631, 16633, 16649, 16651, 16657, 16661,
         16673, 16691, 16693, 16699, 16703, 16729, 16741, 16747, 16759, 16763,
         16787, 16811, 16823, 16829, 16831, 16843, 16871, 16879, 16883, 16889,
         16901, 16903, 16921, 16927, 16931, 16937, 16943, 16963, 16979, 16981,
         16987, 16993, 17011, 17021, 17027, 17029, 17033, 17041, 17047, 17053,
         17077, 17093, 17099, 17107, 17117, 17123, 17137, 17159, 17167, 17183,
         17189, 17191, 17203, 17207, 17209, 17231, 17239, 17257, 17291, 17293,
         17299, 17317, 17321, 17327, 17333, 17341, 17351, 17359, 17377, 17383,
         17387, 17389, 17393, 17401, 17417, 17419, 17431, 17443, 17449, 17467,
         17471, 17477, 17483, 17489, 17491, 17497, 17509, 17519, 17539, 17551,
         17569, 17573, 17579, 17581, 17597, 17599, 17609, 17623, 17627, 17657,
         17659, 17669, 17681, 17683, 17707, 17713, 17729, 17737, 17747, 17749,
         17761, 17783, 17789, 17791, 17807, 17827, 17837, 17839, 17851, 17863,
         17881, 17891, 17903, 17909, 17911, 17921, 17923, 17929, 17939, 17957,
         17959, 17971, 17977, 17981, 17987, 17989, 18013, 18041, 18043, 18047,
         18049, 18059, 18061, 18077, 18089, 18097, 18119, 18121, 18127, 18131,
         18133, 18143, 18149, 18169, 18181, 18191, 18199, 18211, 18217, 18223,
         18229, 18233, 18251, 18253, 18257, 18269, 18287, 18289, 18301, 18307,
         18311, 18313, 18329, 18341, 18353, 18367, 18371, 18379, 18397, 18401,
         18413, 18427, 18433, 18439, 18443, 18451, 18457, 18461, 18481, 18493,
         18503, 18517, 18521, 18523, 18539, 18541, 18553, 18583, 18587, 18593,
         18617, 18637, 18661, 18671, 18679, 18691, 18701, 18713, 18719, 18731,
         18743, 18749, 18757, 18773, 18787, 18793, 18797, 18803, 18839, 18859,
         18869, 18899, 18911, 18913, 18917, 18919, 18947, 18959, 18973, 18979,
         19001, 19009, 19013, 19031, 19037, 19051, 19069, 19073, 19079, 19081,
         19087, 19121, 19139, 19141, 19157, 19163, 19181, 19183, 19207, 19211,
         19213, 19219, 19231, 19237, 19249, 19259, 19267, 19273, 19289, 19301,
         19309, 19319, 19333, 19373, 19379, 19381, 19387, 19391, 19403, 19417,
         19421, 19423, 19427, 19429, 19433, 19441, 19447, 19457, 19463, 19469,
         19471, 19477, 19483, 19489, 19501, 19507, 19531, 19541, 19543, 19553,
         19559, 19571, 19577, 19583, 19597, 19603, 19609, 19661, 19681, 19687,
         19697, 19699, 19709, 19717, 19727, 19739, 19751, 19753, 19759, 19763,
         19777, 19793, 19801, 19813, 19819, 19841, 19843, 19853, 19861, 19867,
         19889, 19891, 19913, 19919, 19927, 19937, 19949, 19961, 19963, 19973,
         19979, 19991, 19993, 19997, 20011, 20021, 20023, 20029, 20047, 20051,
         20063, 20071, 20089, 20101, 20107, 20113, 20117, 20123, 20129, 20143,
         20147, 20149, 20161, 20173, 20177, 20183, 20201, 20219, 20231, 20233,
         20249, 20261, 20269, 20287, 20297, 20323, 20327, 20333, 20341, 20347,
         20353, 20357, 20359, 20369, 20389, 20393, 20399, 20407, 20411, 20431,
         20441, 20443, 20477, 20479, 20483, 20507, 20509, 20521, 20533, 20543,
         20549, 20551, 20563, 20593, 20599, 20611, 20627, 20639, 20641, 20663,
         20681, 20693, 20707, 20717, 20719, 20731, 20743, 20747, 20749, 20753,
         20759, 20771, 20773, 20789, 20807, 20809, 20849, 20857, 20873, 20879,
         20887, 20897, 20899, 20903, 20921, 20929, 20939, 20947, 20959, 20963,
         20981, 20983, 21001, 21011, 21013, 21017, 21019, 21023, 21031, 21059,
         21061, 21067, 21089, 21101, 21107, 21121, 21139, 21143, 21149, 21157,
         21163, 21169, 21179, 21187, 21191, 21193, 21211, 21221, 21227, 21247,
         21269, 21277, 21283, 21313, 21317, 21319, 21323, 21341, 21347, 21377,
         21379, 21383, 21391, 21397, 21401, 21407, 21419, 21433, 21467, 21481,
         21487, 21491, 21493, 21499, 21503, 21517, 21521, 21523, 21529, 21557,
         21559, 21563, 21569, 21577, 21587, 21589, 21599, 21601, 21611, 21613,
         21617, 21647, 21649, 21661, 21673, 21683, 21701, 21713, 21727, 21737,
         21739, 21751, 21757, 21767, 21773, 21787, 21799, 21803, 21817, 21821,
         21839, 21841, 21851, 21859, 21863, 21871, 21881, 21893, 21911, 21929,
         21937, 21943, 21961, 21977, 21991, 21997, 22003, 22013, 22027, 22031,
         22037, 22039, 22051, 22063, 22067, 22073, 22079, 22091, 22093, 22109,
         22111, 22123, 22129, 22133, 22147, 22153, 22157, 22159, 22171, 22189,
         22193, 22229, 22247, 22259, 22271, 22273, 22277, 22279, 22283, 22291,
         22303, 22307, 22343, 22349, 22367, 22369, 22381, 22391, 22397, 22409,
         22433, 22441, 22447, 22453, 22469, 22481, 22483, 22501, 22511, 22531,
         22541, 22543, 22549, 22567, 22571, 22573, 22613, 22619, 22621, 22637,
         22639, 22643, 22651, 22669, 22679, 22691, 22697, 22699, 22709, 22717,
         22721, 22727, 22739, 22741, 22751, 22769, 22777, 22783, 22787, 22807,
         22811, 22817, 22853, 22859, 22861, 22871, 22877, 22901, 22907, 22921,
         22937, 22943, 22961, 22963, 22973, 22993, 23003, 23011, 23017, 23021,
         23027, 23029, 23039, 23041, 23053, 23057, 23059, 23063, 23071, 23081,
         23087, 23099, 23117, 23131, 23143, 23159, 23167, 23173, 23189, 23197,
         23201, 23203, 23209, 23227, 23251, 23269, 23279, 23291, 23293, 23297,
         23311, 23321, 23327, 23333, 23339, 23357, 23369, 23371, 23399, 23417,
         23431, 23447, 23459, 23473, 23497, 23509, 23531, 23537, 23539, 23549,
         23557, 23561, 23563, 23567, 23581, 23593, 23599, 23603, 23609, 23623,
         23627, 23629, 23633, 23663, 23669, 23671, 23677, 23687, 23689, 23719,
         23741, 23743, 23747, 23753, 23761, 23767, 23773, 23789, 23801, 23813,
         23819, 23827, 23831, 23833, 23857, 23869, 23873, 23879, 23887, 23893,
         23899, 23909, 23911, 23917, 23929, 23957, 23971, 23977, 23981, 23993,
         24001, 24007, 24019, 24023, 24029, 24043, 24049, 24061, 24071, 24077,
         24083, 24091, 24097, 24103, 24107, 24109, 24113, 24121, 24133, 24137,
         24151, 24169, 24179, 24181, 24197, 24203, 24223, 24229, 24239, 24247,
         24251, 24281, 24317, 24329, 24337, 24359, 24371, 24373, 24379, 24391,
         24407, 24413, 24419, 24421, 24439, 24443, 24469, 24473, 24481, 24499,
         24509, 24517, 24527, 24533, 24547, 24551, 24571, 24593, 24611, 24623,
         24631, 24659, 24671, 24677, 24683, 24691, 24697, 24709, 24733, 24749,
         24763, 24767, 24781, 24793, 24799, 24809, 24821, 24841, 24847, 24851,
         24859, 24877, 24889, 24907, 24917, 24919, 24923, 24943, 24953, 24967,
         24971, 24977, 24979, 24989, 25013, 25031, 25033, 25037, 25057, 25073,
         25087, 25097, 25111, 25117, 25121, 25127, 25147, 25153, 25163, 25169,
         25171, 25183, 25189, 25219, 25229, 25237, 25243, 25247, 25253, 25261,
         25301, 25303, 25307, 25309, 25321, 25339, 25343, 25349, 25357, 25367,
         25373, 25391, 25409, 25411, 25423, 25439, 25447, 25453, 25457, 25463,
         25469, 25471, 25523, 25537, 25541, 25561, 25577, 25579, 25583, 25589,
         25601, 25603, 25609, 25621, 25633, 25639, 25643, 25657, 25667, 25673,
         25679, 25693, 25703, 25717, 25733, 25741, 25747, 25759, 25763, 25771,
         25793, 25799, 25801, 25819, 25841, 25847, 25849, 25867, 25873, 25889,
         25903, 25913, 25919, 25931, 25933, 25939, 25943, 25951, 25969, 25981,
         25997, 25999, 26003, 26017, 26021, 26029, 26041, 26053, 26083, 26099,
         26107, 26111, 26113, 26119, 26141, 26153, 26161, 26171, 26177, 26183,
         26189, 26203, 26209, 26227, 26237, 26249, 26251, 26261, 26263, 26267,
         26293, 26297, 26309, 26317, 26321, 26339, 26347, 26357, 26371, 26387,
         26393, 26399, 26407, 26417, 26423, 26431, 26437, 26449, 26459, 26479,
         26489, 26497, 26501, 26513, 26539, 26557, 26561, 26573, 26591, 26597,
         26627, 26633, 26641, 26647, 26669, 26681, 26683, 26687, 26693, 26699,
         26701, 26711, 26713, 26717, 26723, 26729, 26731, 26737, 26759, 26777,
         26783, 26801, 26813, 26821, 26833, 26839, 26849, 26861, 26863, 26879,
         26881, 26891, 26893, 26903, 26921, 26927, 26947, 26951, 26953, 26959,
         26981, 26987, 26993, 27011, 27017, 27031, 27043, 27059, 27061, 27067,
         27073, 27077, 27091, 27103, 27107, 27109, 27127, 27143, 27179, 27191,
         27197, 27211, 27239, 27241, 27253, 27259, 27271, 27277, 27281, 27283,
         27299, 27329, 27337, 27361, 27367, 27397, 27407, 27409, 27427, 27431,
         27437, 27449, 27457, 27479, 27481, 27487, 27509, 27527, 27529, 27539,
         27541, 27551, 27581, 27583, 27611, 27617, 27631, 27647, 27653, 27673,
         27689, 27691, 27697, 27701, 27733, 27737, 27739, 27743, 27749, 27751,
         27763, 27767, 27773, 27779, 27791, 27793, 27799, 27803, 27809, 27817,
         27823, 27827, 27847, 27851, 27883, 27893, 27901, 27917, 27919, 27941,
         27943, 27947, 27953, 27961, 27967, 27983, 27997, 28001, 28019, 28027,
         28031, 28051, 28057, 28069, 28081, 28087, 28097, 28099, 28109, 28111,
         28123, 28151, 28163, 28181, 28183, 28201, 28211, 28219, 28229, 28277,
         28279, 28283, 28289, 28297, 28307, 28309, 28319, 28349, 28351, 28387,
         28393, 28403, 28409, 28411, 28429, 28433, 28439, 28447, 28463, 28477,
         28493, 28499, 28513, 28517, 28537, 28541, 28547, 28549, 28559, 28571,
         28573, 28579, 28591, 28597, 28603, 28607, 28619, 28621, 28627, 28631,
         28643, 28649, 28657, 28661, 28663, 28669, 28687, 28697, 28703, 28711,
         28723, 28729, 28751, 28753, 28759, 28771, 28789, 28793, 28807, 28813,
         28817, 28837, 28843, 28859, 28867, 28871, 28879, 28901, 28909, 28921,
         28927, 28933, 28949, 28961, 28979, 29009, 29017, 29021, 29023, 29027,
         29033, 29059, 29063, 29077, 29101, 29123, 29129, 29131, 29137, 29147,
         29153, 29167, 29173, 29179, 29191, 29201, 29207, 29209, 29221, 29231,
         29243, 29251, 29269, 29287, 29297, 29303, 29311, 29327, 29333, 29339,
         29347, 29363, 29383, 29387, 29389, 29399, 29401, 29411, 29423, 29429,
         29437, 29443, 29453, 29473, 29483, 29501, 29527, 29531, 29537, 29567,
         29569, 29573, 29581, 29587, 29599, 29611, 29629, 29633, 29641, 29663,
         29669, 29671, 29683, 29717, 29723, 29741, 29753, 29759, 29761, 29789,
         29803, 29819, 29833, 29837, 29851, 29863, 29867, 29873, 29879, 29881,
         29917, 29921, 29927, 29947, 29959, 29983, 29989, 30011, 30013, 30029,
         30047, 30059, 30071, 30089, 30091, 30097, 30103, 30109, 30113, 30119,
         30133, 30137, 30139, 30161, 30169, 30181, 30187, 30197, 30203, 30211,
         30223, 30241, 30253, 30259, 30269, 30271, 30293, 30307, 30313, 30319,
         30323, 30341, 30347, 30367, 30389, 30391, 30403, 30427, 30431, 30449,
         30467, 30469, 30491, 30493, 30497, 30509, 30517, 30529, 30539, 30553,
         30557, 30559, 30577, 30593, 30631, 30637, 30643, 30649, 30661, 30671,
         30677, 30689, 30697, 30703, 30707, 30713, 30727, 30757, 30763, 30773,
         30781, 30803, 30809, 30817, 30829, 30839, 30841, 30851, 30853, 30859,
         30869, 30871, 30881, 30893, 30911, 30931, 30937, 30941, 30949, 30971,
         30977, 30983, 31013, 31019, 31033, 31039, 31051, 31063, 31069, 31079,
         31081, 31091, 31121, 31123, 31139, 31147, 31151, 31153, 31159, 31177,
         31181, 31183, 31189, 31193, 31219, 31223, 31231, 31237, 31247, 31249,
         31253, 31259, 31267, 31271, 31277, 31307, 31319, 31321, 31327, 31333,
         31337, 31357, 31379, 31387, 31391, 31393, 31397, 31469, 31477, 31481,
         31489, 31511, 31513, 31517, 31531, 31541, 31543, 31547, 31567, 31573,
         31583, 31601, 31607, 31627, 31643, 31649, 31657, 31663, 31667, 31687,
         31699, 31721, 31723, 31727, 31729, 31741, 31751, 31769, 31771, 31793,
         31799, 31817, 31847, 31849, 31859, 31873, 31883, 31891, 31907, 31957,
         31963, 31973, 31981, 31991, 32003, 32009, 32027, 32029, 32051, 32057,
         32059, 32063, 32069, 32077, 32083, 32089, 32099, 32117, 32119, 32141,
         32143, 32159, 32173, 32183, 32189, 32191, 32203, 32213, 32233, 32237,
         32251, 32257, 32261, 32297, 32299, 32303, 32309, 32321, 32323, 32327,
         32341, 32353, 32359, 32363, 32369, 32371, 32377, 32381, 32401, 32411,
         32413, 32423, 32429, 32441, 32443, 32467, 32479, 32491, 32497, 32503,
         32507, 32531, 32533, 32537, 32561, 32563, 32569, 32573, 32579, 32587,
         32603, 32609, 32611, 32621, 32633, 32647, 32653, 32687, 32693, 32707,
         32713, 32717, 32719, 32749, 32771, 32779, 32783, 32789, 32797, 32801,
         32803, 32831, 32833, 32839, 32843, 32869, 32887, 32909, 32911, 32917,
         32933, 32939, 32941, 32957, 32969, 32971, 32983, 32987, 32993, 32999,
         33013, 33023, 33029, 33037, 33049, 33053, 33071, 33073, 33083, 33091,
         33107, 33113, 33119, 33149, 33151, 33161, 33179, 33181, 33191, 33199,
         33203, 33211, 33223, 33247, 33287, 33289, 33301, 33311, 33317, 33329,
         33331, 33343, 33347, 33349, 33353, 33359, 33377, 33391, 33403, 33409,
         33413, 33427, 33457, 33461, 33469, 33479, 33487, 33493, 33503, 33521,
         33529, 33533, 33547, 33563, 33569, 33577, 33581, 33587, 33589, 33599,
         33601, 33613, 33617, 33619, 33623, 33629, 33637, 33641, 33647, 33679,
         33703, 33713, 33721, 33739, 33749, 33751, 33757, 33767, 33769, 33773,
         33791, 33797, 33809, 33811, 33827, 33829, 33851, 33857, 33863, 33871,
         33889, 33893, 33911, 33923, 33931, 33937, 33941, 33961, 33967, 33997,
         34019, 34031, 34033, 34039, 34057, 34061, 34123, 34127, 34129, 34141,
         34147, 34157, 34159, 34171, 34183, 34211, 34213, 34217, 34231, 34253,
         34259, 34261, 34267, 34273, 34283, 34297, 34301, 34303, 34313, 34319,
         34327, 34337, 34351, 34361, 34367, 34369, 34381, 34403, 34421, 34429,
         34439, 34457, 34469, 34471, 34483, 34487, 34499, 34501, 34511, 34513,
         34519, 34537, 34543, 34549, 34583, 34589, 34591, 34603, 34607, 34613,
         34631, 34649, 34651, 34667, 34673, 34679, 34687, 34693, 34703, 34721,
         34729, 34739, 34747, 34757, 34759, 34763, 34781, 34807, 34819, 34841,
         34843, 34847, 34849, 34871, 34877, 34883, 34897, 34913, 34919, 34939,
         34949, 34961, 34963, 34981, 35023, 35027, 35051, 35053, 35059, 35069,
         35081, 35083, 35089, 35099, 35107, 35111, 35117, 35129, 35141, 35149,
         35153, 35159, 35171, 35201, 35221, 35227, 35251, 35257, 35267, 35279,
         35281, 35291, 35311, 35317, 35323, 35327, 35339, 35353, 35363, 35381,
         35393, 35401, 35407, 35419, 35423, 35437, 35447, 35449, 35461, 35491,
         35507, 35509, 35521, 35527, 35531, 35533, 35537, 35543, 35569, 35573,
         35591, 35593, 35597, 35603, 35617, 35671, 35677, 35729, 35731, 35747,
         35753, 35759, 35771, 35797, 35801, 35803, 35809, 35831, 35837, 35839,
         35851, 35863, 35869, 35879, 35897, 35899, 35911, 35923, 35933, 35951,
         35963, 35969, 35977, 35983, 35993, 35999, 36007, 36011, 36013, 36017,
         36037, 36061, 36067, 36073, 36083, 36097, 36107, 36109, 36131, 36137,
         36151, 36161, 36187, 36191, 36209, 36217, 36229, 36241, 36251, 36263,
         36269, 36277, 36293, 36299, 36307, 36313, 36319, 36341, 36343, 36353,
         36373, 36383, 36389, 36433, 36451, 36457, 36467, 36469, 36473, 36479,
         36493, 36497, 36523, 36527, 36529, 36541, 36551, 36559, 36563, 36571,
         36583, 36587, 36599, 36607, 36629, 36637, 36643, 36653, 36671, 36677,
         36683, 36691, 36697, 36709, 36713, 36721, 36739, 36749, 36761, 36767,
         36779, 36781, 36787, 36791, 36793, 36809, 36821, 36833, 36847, 36857,
         36871, 36877, 36887, 36899, 36901, 36913, 36919, 36923, 36929, 36931,
         36943, 36947, 36973, 36979, 36997, 37003, 37013, 37019, 37021, 37039,
         37049, 37057, 37061, 37087, 37097, 37117, 37123, 37139, 37159, 37171,
         37181, 37189, 37199, 37201, 37217, 37223, 37243, 37253, 37273, 37277,
         37307, 37309, 37313, 37321, 37337, 37339, 37357, 37361, 37363, 37369,
         37379, 37397, 37409, 37423, 37441, 37447, 37463, 37483, 37489, 37493,
         37501, 37507, 37511, 37517, 37529, 37537, 37547, 37549, 37561, 37567,
         37571, 37573, 37579, 37589, 37591, 37607, 37619, 37633, 37643, 37649,
         37657, 37663, 37691, 37693, 37699, 37717, 37747, 37781, 37783, 37799,
         37811, 37813, 37831, 37847, 37853, 37861, 37871, 37879, 37889, 37897,
         37907, 37951, 37957, 37963, 37967, 37987, 37991, 37993, 37997, 38011,
         38039, 38047, 38053, 38069, 38083, 38113, 38119, 38149, 38153, 38167,
         38177, 38183, 38189, 38197, 38201, 38219, 38231, 38237, 38239, 38261,
         38273, 38281, 38287, 38299, 38303, 38317, 38321, 38327, 38329, 38333,
         38351, 38371, 38377, 38393, 38431, 38447, 38449, 38453, 38459, 38461,
         38501, 38543, 38557, 38561, 38567, 38569, 38593, 38603, 38609, 38611,
         38629, 38639, 38651, 38653, 38669, 38671, 38677, 38693, 38699, 38707,
         38711, 38713, 38723, 38729, 38737, 38747, 38749, 38767, 38783, 38791,
         38803, 38821, 38833, 38839, 38851, 38861, 38867, 38873, 38891, 38903,
         38917, 38921, 38923, 38933, 38953, 38959, 38971, 38977, 38993, 39019,
         39023, 39041, 39043, 39047, 39079, 39089, 39097, 39103, 39107, 39113,
         39119, 39133, 39139, 39157, 39161, 39163, 39181, 39191, 39199, 39209,
         39217, 39227, 39229, 39233, 39239, 39241, 39251, 39293, 39301, 39313,
         39317, 39323, 39341, 39343, 39359, 39367, 39371, 39373, 39383, 39397,
         39409, 39419, 39439, 39443, 39451, 39461, 39499, 39503, 39509, 39511,
         39521, 39541, 39551, 39563, 39569, 39581, 39607, 39619, 39623, 39631,
         39659, 39667, 39671, 39679, 39703, 39709, 39719, 39727, 39733, 39749,
         39761, 39769, 39779, 39791, 39799, 39821, 39827, 39829, 39839, 39841,
         39847, 39857, 39863, 39869, 39877, 39883, 39887, 39901, 39929, 39937,
         39953, 39971, 39979, 39983, 39989, 40009, 40013, 40031, 40037, 40039,
         40063, 40087, 40093, 40099, 40111, 40123, 40127, 40129, 40151, 40153,
         40163, 40169, 40177, 40189, 40193, 40213, 40231, 40237, 40241, 40253,
         40277, 40283, 40289, 40343, 40351, 40357, 40361, 40387, 40423, 40427,
         40429, 40433, 40459, 40471, 40483, 40487, 40493, 40499, 40507, 40519,
         40529, 40531, 40543, 40559, 40577, 40583, 40591, 40597, 40609, 40627,
         40637, 40639, 40693, 40697, 40699, 40709, 40739, 40751, 40759, 40763,
         40771, 40787, 40801, 40813, 40819, 40823, 40829, 40841, 40847, 40849,
         40853, 40867, 40879, 40883, 40897, 40903, 40927, 40933, 40939, 40949,
         40961, 40973, 40993, 41011, 41017, 41023, 41039, 41047, 41051, 41057,
         41077, 41081, 41113, 41117, 41131, 41141, 41143, 41149, 41161, 41177,
         41179, 41183, 41189, 41201, 41203, 41213, 41221, 41227, 41231, 41233,
         41243, 41257, 41263, 41269, 41281, 41299, 41333, 41341, 41351, 41357,
         41381, 41387, 41389, 41399, 41411, 41413, 41443, 41453, 41467, 41479,
         41491, 41507, 41513, 41519, 41521, 41539, 41543, 41549, 41579, 41593,
         41597, 41603, 41609, 41611, 41617, 41621, 41627, 41641, 41647, 41651,
         41659, 41669, 41681, 41687, 41719, 41729, 41737, 41759, 41761, 41771,
         41777, 41801, 41809, 41813, 41843, 41849, 41851, 41863, 41879, 41887,
         41893, 41897, 41903, 41911, 41927, 41941, 41947, 41953, 41957, 41959,
         41969, 41981, 41983, 41999, 42013, 42017, 42019, 42023, 42043, 42061,
         42071, 42073, 42083, 42089, 42101, 42131, 42139, 42157, 42169, 42179,
         42181, 42187, 42193, 42197, 42209, 42221, 42223, 42227, 42239, 42257,
         42281, 42283, 42293, 42299, 42307, 42323, 42331, 42337, 42349, 42359,
         42373, 42379, 42391, 42397, 42403, 42407, 42409, 42433, 42437, 42443,
         42451, 42457, 42461, 42463, 42467, 42473, 42487, 42491, 42499, 42509,
         42533, 42557, 42569, 42571, 42577, 42589, 42611, 42641, 42643, 42649,
         42667, 42677, 42683, 42689, 42697, 42701, 42703, 42709, 42719, 42727,
         42737, 42743, 42751, 42767, 42773, 42787, 42793, 42797, 42821, 42829,
         42839, 42841, 42853, 42859, 42863, 42899, 42901, 42923, 42929, 42937,
         42943, 42953, 42961, 42967, 42979, 42989, 43003, 43013, 43019, 43037,
         43049, 43051, 43063, 43067, 43093, 43103, 43117, 43133, 43151, 43159,
         43177, 43189, 43201, 43207, 43223, 43237, 43261, 43271, 43283, 43291,
         43313, 43319, 43321, 43331, 43391, 43397, 43399, 43403, 43411, 43427,
         43441, 43451, 43457, 43481, 43487, 43499, 43517, 43541, 43543, 43573,
         43577, 43579, 43591, 43597, 43607, 43609, 43613, 43627, 43633, 43649,
         43651, 43661, 43669, 43691, 43711, 43717, 43721, 43753, 43759, 43777,
         43781, 43783, 43787, 43789, 43793, 43801, 43853, 43867, 43889, 43891,
         43913, 43933, 43943, 43951, 43961, 43963, 43969, 43973, 43987, 43991,
         43997, 44017, 44021, 44027, 44029, 44041, 44053, 44059, 44071, 44087,
         44089, 44101, 44111, 44119, 44123, 44129, 44131, 44159, 44171, 44179,
         44189, 44201, 44203, 44207, 44221, 44249, 44257, 44263, 44267, 44269,
         44273, 44279, 44281, 44293, 44351, 44357, 44371, 44381, 44383, 44389,
         44417, 44449, 44453, 44483, 44491, 44497, 44501, 44507, 44519, 44531,
         44533, 44537, 44543, 44549, 44563, 44579, 44587, 44617, 44621, 44623,
         44633, 44641, 44647, 44651, 44657, 44683, 44687, 44699, 44701, 44711,
         44729, 44741, 44753, 44771, 44773, 44777, 44789, 44797, 44809, 44819,
         44839, 44843, 44851, 44867, 44879, 44887, 44893, 44909, 44917, 44927,
         44939, 44953, 44959, 44963, 44971, 44983, 44987, 45007, 45013, 45053,
         45061, 45077, 45083, 45119, 45121, 45127, 45131, 45137, 45139, 45161,
         45179, 45181, 45191, 45197, 45233, 45247, 45259, 45263, 45281, 45289,
         45293, 45307, 45317, 45319, 45329, 45337, 45341, 45343, 45361, 45377,
         45389, 45403, 45413, 45427, 45433, 45439, 45481, 45491, 45497, 45503,
         45523, 45533, 45541, 45553, 45557, 45569, 45587, 45589, 45599, 45613,
         45631, 45641, 45659, 45667, 45673, 45677, 45691, 45697, 45707, 45737,
         45751, 45757, 45763, 45767, 45779, 45817, 45821, 45823, 45827, 45833,
         45841, 45853, 45863, 45869, 45887, 45893, 45943, 45949, 45953, 45959,
         45971, 45979, 45989, 46021, 46027, 46049, 46051, 46061, 46073, 46091,
         46093, 46099, 46103, 46133, 46141, 46147, 46153, 46171, 46181, 46183,
         46187, 46199, 46219, 46229, 46237, 46261, 46271, 46273, 46279, 46301,
         46307, 46309, 46327, 46337, 46349, 46351, 46381, 46399, 46411, 46439,
         46441, 46447, 46451, 46457, 46471, 46477, 46489, 46499, 46507, 46511,
         46523, 46549, 46559, 46567, 46573, 46589, 46591, 46601, 46619, 46633,
         46639, 46643, 46649, 46663, 46679, 46681, 46687, 46691, 46703, 46723,
         46727, 46747, 46751, 46757, 46769, 46771, 46807, 46811, 46817, 46819,
         46829, 46831, 46853, 46861, 46867, 46877, 46889, 46901, 46919, 46933,
         46957, 46993, 46997, 47017, 47041, 47051, 47057, 47059, 47087, 47093,
         47111, 47119, 47123, 47129, 47137, 47143, 47147, 47149, 47161, 47189,
         47207, 47221, 47237, 47251, 47269, 47279, 47287, 47293, 47297, 47303,
         47309, 47317, 47339, 47351, 47353, 47363, 47381, 47387, 47389, 47407,
         47417, 47419, 47431, 47441, 47459, 47491, 47497, 47501, 47507, 47513,
         47521, 47527, 47533, 47543, 47563, 47569, 47581, 47591, 47599, 47609,
         47623, 47629, 47639, 47653, 47657, 47659, 47681, 47699, 47701, 47711,
         47713, 47717, 47737, 47741, 47743, 47777, 47779, 47791, 47797, 47807,
         47809, 47819, 47837, 47843, 47857, 47869, 47881, 47903, 47911, 47917,
         47933, 47939, 47947, 47951, 47963, 47969, 47977, 47981, 48017, 48023,
         48029, 48049, 48073, 48079, 48091, 48109, 48119, 48121, 48131, 48157,
         48163, 48179, 48187, 48193, 48197, 48221, 48239, 48247, 48259, 48271,
         48281, 48299, 48311, 48313, 48337, 48341, 48353, 48371, 48383, 48397,
         48407, 48409, 48413, 48437, 48449, 48463, 48473, 48479, 48481, 48487,
         48491, 48497, 48523, 48527, 48533, 48539, 48541, 48563, 48571, 48589,
         48593, 48611, 48619, 48623, 48647, 48649, 48661, 48673, 48677, 48679,
         48731, 48733, 48751, 48757, 48761, 48767, 48779, 48781, 48787, 48799,
         48809, 48817, 48821, 48823, 48847, 48857, 48859, 48869, 48871, 48883,
         48889, 48907, 48947, 48953, 48973, 48989, 48991, 49003, 49009, 49019,
         49031, 49033, 49037, 49043, 49057, 49069, 49081, 49103, 49109, 49117,
         49121, 49123, 49139, 49157, 49169, 49171, 49177, 49193, 49199, 49201,
         49207, 49211, 49223, 49253, 49261, 49277, 49279, 49297, 49307, 49331,
         49333, 49339, 49363, 49367, 49369, 49391, 49393, 49409, 49411, 49417,
         49429, 49433, 49451, 49459, 49463, 49477, 49481, 49499, 49523, 49529,
         49531, 49537, 49547, 49549, 49559, 49597, 49603, 49613, 49627, 49633,
         49639, 49663, 49667, 49669, 49681, 49697, 49711, 49727, 49739, 49741,
         49747, 49757, 49783, 49787, 49789, 49801, 49807, 49811, 49823, 49831,
         49843, 49853, 49871, 49877, 49891, 49919, 49921, 49927, 49937, 49939,
         49943, 49957, 49991, 49993, 49999, 50021, 50023, 50033, 50047, 50051,
         50053, 50069, 50077, 50087, 50093, 50101, 50111, 50119, 50123, 50129,
         50131, 50147, 50153, 50159, 50177, 50207, 50221, 50227, 50231, 50261,
         50263, 50273, 50287, 50291, 50311, 50321, 50329, 50333, 50341, 50359,
         50363, 50377, 50383, 50387, 50411, 50417, 50423, 50441, 50459, 50461,
         50497, 50503, 50513, 50527, 50539, 50543, 50549, 50551, 50581, 50587,
         50591, 50593, 50599, 50627, 50647, 50651, 50671, 50683, 50707, 50723,
         50741, 50753, 50767, 50773, 50777, 50789, 50821, 50833, 50839, 50849,
         50857, 50867, 50873, 50891, 50893, 50909, 50923, 50929, 50951, 50957,
         50969, 50971, 50989, 50993, 51001, 51031, 51043, 51047, 51059, 51061,
         51071, 51109, 51131, 51133, 51137, 51151, 51157, 51169, 51193, 51197,
         51199, 51203, 51217, 51229, 51239, 51241, 51257, 51263, 51283, 51287,
         51307, 51329, 51341, 51343, 51347, 51349, 51361, 51383, 51407, 51413,
         51419, 51421, 51427, 51431, 51437, 51439, 51449, 51461, 51473, 51479,
         51481, 51487, 51503, 51511, 51517, 51521, 51539, 51551, 51563, 51577,
         51581, 51593, 51599, 51607, 51613, 51631, 51637, 51647, 51659, 51673,
         51679, 51683, 51691, 51713, 51719, 51721, 51749, 51767, 51769, 51787,
         51797, 51803, 51817, 51827, 51829, 51839, 51853, 51859, 51869, 51871,
         51893, 51899, 51907, 51913, 51929, 51941, 51949, 51971, 51973, 51977,
         51991, 52009, 52021, 52027, 52051, 52057, 52067, 52069, 52081, 52103,
         52121, 52127, 52147, 52153, 52163, 52177, 52181, 52183, 52189, 52201,
         52223, 52237, 52249, 52253, 52259, 52267, 52289, 52291, 52301, 52313,
         52321, 52361, 52363, 52369, 52379, 52387, 52391, 52433, 52453, 52457,
         52489, 52501, 52511, 52517, 52529, 52541, 52543, 52553, 52561, 52567,
         52571, 52579, 52583, 52609, 52627, 52631, 52639, 52667, 52673, 52691,
         52697, 52709, 52711, 52721, 52727, 52733, 52747, 52757, 52769, 52783,
         52807, 52813, 52817, 52837, 52859, 52861, 52879, 52883, 52889, 52901,
         52903, 52919, 52937, 52951, 52957, 52963, 52967, 52973, 52981, 52999,
         53003, 53017, 53047, 53051, 53069, 53077, 53087, 53089, 53093, 53101,
         53113, 53117, 53129, 53147, 53149, 53161, 53171, 53173, 53189, 53197,
         53201, 53231, 53233, 53239, 53267, 53269, 53279, 53281, 53299, 53309,
         53323, 53327, 53353, 53359, 53377, 53381, 53401, 53407, 53411, 53419,
         53437, 53441, 53453, 53479, 53503, 53507, 53527, 53549, 53551, 53569,
         53591, 53593, 53597, 53609, 53611, 53617, 53623, 53629, 53633, 53639,
         53653, 53657, 53681, 53693, 53699, 53717, 53719, 53731, 53759, 53773,
         53777, 53783, 53791, 53813, 53819, 53831, 53849, 53857, 53861, 53881,
         53887, 53891, 53897, 53899, 53917, 53923, 53927, 53939, 53951, 53959,
         53987, 53993, 54001, 54011, 54013, 54037, 54049, 54059, 54083, 54091,
         54101, 54121, 54133, 54139, 54151, 54163, 54167, 54181, 54193, 54217,
         54251, 54269, 54277, 54287, 54293, 54311, 54319, 54323, 54331, 54347,
         54361, 54367, 54371, 54377, 54401, 54403, 54409, 54413, 54419, 54421,
         54437, 54443, 54449, 54469, 54493, 54497, 54499, 54503, 54517, 54521,
         54539, 54541, 54547, 54559, 54563, 54577, 54581, 54583, 54601, 54617,
         54623, 54629, 54631, 54647, 54667, 54673, 54679, 54709, 54713, 54721,
         54727, 54751, 54767, 54773, 54779, 54787, 54799, 54829, 54833, 54851,
         54869, 54877, 54881, 54907, 54917, 54919, 54941, 54949, 54959, 54973,
         54979, 54983, 55001, 55009, 55021, 55049, 55051, 55057, 55061, 55073,
         55079, 55103, 55109, 55117, 55127, 55147, 55163, 55171, 55201, 55207,
         55213, 55217, 55219, 55229, 55243, 55249, 55259, 55291, 55313, 55331,
         55333, 55337, 55339, 55343, 55351, 55373, 55381, 55399, 55411, 55439,
         55441, 55457, 55469, 55487, 55501, 55511, 55529, 55541, 55547, 55579,
         55589, 55603, 55609, 55619, 55621, 55631, 55633, 55639, 55661, 55663,
         55667, 55673, 55681, 55691, 55697, 55711, 55717, 55721, 55733, 55763,
         55787, 55793, 55799, 55807, 55813, 55817, 55819, 55823, 55829, 55837,
         55843, 55849, 55871, 55889, 55897, 55901, 55903, 55921, 55927, 55931,
         55933, 55949, 55967, 55987, 55997, 56003, 56009, 56039, 56041, 56053,
         56081, 56087, 56093, 56099, 56101, 56113, 56123, 56131, 56149, 56167,
         56171, 56179, 56197, 56207, 56209, 56237, 56239, 56249, 56263, 56267,
         56269, 56299, 56311, 56333, 56359, 56369, 56377, 56383, 56393, 56401,
         56417, 56431, 56437, 56443, 56453, 56467, 56473, 56477, 56479, 56489,
         56501, 56503, 56509, 56519, 56527, 56531, 56533, 56543, 56569, 56591,
         56597, 56599, 56611, 56629, 56633, 56659, 56663, 56671, 56681, 56687,
         56701, 56711, 56713, 56731, 56737, 56747, 56767, 56773, 56779, 56783,
         56807, 56809, 56813, 56821, 56827, 56843, 56857, 56873, 56891, 56893,
         56897, 56909, 56911, 56921, 56923, 56929, 56941, 56951, 56957, 56963,
         56983, 56989, 56993, 56999, 57037, 57041, 57047, 57059, 57073, 57077,
         57089, 57097, 57107, 57119, 57131, 57139, 57143, 57149, 57163, 57173,
         57179, 57191, 57193, 57203, 57221, 57223, 57241, 57251, 57259, 57269,
         57271, 57283, 57287, 57301, 57329, 57331, 57347, 57349, 57367, 57373,
         57383, 57389, 57397, 57413, 57427, 57457, 57467, 57487, 57493, 57503,
         57527, 57529, 57557, 57559, 57571, 57587, 57593, 57601, 57637, 57641,
         57649, 57653, 57667, 57679, 57689, 57697, 57709, 57713, 57719, 57727,
         57731, 57737, 57751, 57773, 57781, 57787, 57791, 57793, 57803, 57809,
         57829, 57839, 57847, 57853, 57859, 57881, 57899, 57901, 57917, 57923,
         57943, 57947, 57973, 57977, 57991, 58013, 58027, 58031, 58043, 58049,
         58057, 58061, 58067, 58073, 58099, 58109, 58111, 58129, 58147, 58151,
         58153, 58169, 58171, 58189, 58193, 58199, 58207, 58211, 58217, 58229,
         58231, 58237, 58243, 58271, 58309, 58313, 58321, 58337, 58363, 58367,
         58369, 58379, 58391, 58393, 58403, 58411, 58417, 58427, 58439, 58441,
         58451, 58453, 58477, 58481, 58511, 58537, 58543, 58549, 58567, 58573,
         58579, 58601, 58603, 58613, 58631, 58657, 58661, 58679, 58687, 58693,
         58699, 58711, 58727, 58733, 58741, 58757, 58763, 58771, 58787, 58789,
         58831, 58889, 58897, 58901, 58907, 58909, 58913, 58921, 58937, 58943,
         58963, 58967, 58979, 58991, 58997, 59009, 59011, 59021, 59023, 59029,
         59051, 59053, 59063, 59069, 59077, 59083, 59093, 59107, 59113, 59119,
         59123, 59141, 59149, 59159, 59167, 59183, 59197, 59207, 59209, 59219,
         59221, 59233, 59239, 59243, 59263, 59273, 59281, 59333, 59341, 59351,
         59357, 59359, 59369, 59377, 59387, 59393, 59399, 59407, 59417, 59419,
         59441, 59443, 59447, 59453, 59467, 59471, 59473, 59497, 59509, 59513,
         59539, 59557, 59561, 59567, 59581, 59611, 59617, 59621, 59627, 59629,
         59651, 59659, 59663, 59669, 59671, 59693, 59699, 59707, 59723, 59729,
         59743, 59747, 59753, 59771, 59779, 59791, 59797, 59809, 59833, 59863,
         59879, 59887, 59921, 59929, 59951, 59957, 59971, 59981, 59999, 60013,
         60017, 60029, 60037, 60041, 60077, 60083, 60089, 60091, 60101, 60103,
         60107, 60127, 60133, 60139, 60149, 60161, 60167, 60169, 60209, 60217,
         60223, 60251, 60257, 60259, 60271, 60289, 60293, 60317, 60331, 60337,
         60343, 60353, 60373, 60383, 60397, 60413, 60427, 60443, 60449, 60457,
         60493, 60497, 60509, 60521, 60527, 60539, 60589, 60601, 60607, 60611,
         60617, 60623, 60631, 60637, 60647, 60649, 60659, 60661, 60679, 60689,
         60703, 60719, 60727, 60733, 60737, 60757, 60761, 60763, 60773, 60779,
         60793, 60811, 60821, 60859, 60869, 60887, 60889, 60899, 60901, 60913,
         60917, 60919, 60923, 60937, 60943, 60953, 60961, 61001, 61007, 61027,
         61031, 61043, 61051, 61057, 61091, 61099, 61121, 61129, 61141, 61151,
         61153, 61169, 61211, 61223, 61231, 61253, 61261, 61283, 61291, 61297,
         61331, 61333, 61339, 61343, 61357, 61363, 61379, 61381, 61403, 61409,
         61417, 61441, 61463, 61469, 61471, 61483, 61487, 61493, 61507, 61511,
         61519, 61543, 61547, 61553, 61559, 61561, 61583, 61603, 61609, 61613,
         61627, 61631, 61637, 61643, 61651, 61657, 61667, 61673, 61681, 61687,
         61703, 61717, 61723, 61729, 61751, 61757, 61781, 61813, 61819, 61837,
         61843, 61861, 61871, 61879, 61909, 61927, 61933, 61949, 61961, 61967,
         61979, 61981, 61987, 61991, 62003, 62011, 62017, 62039, 62047, 62053,
         62057, 62071, 62081, 62099, 62119, 62129, 62131, 62137, 62141, 62143,
         62171, 62189, 62191, 62201, 62207, 62213, 62219, 62233, 62273, 62297,
         62299, 62303, 62311, 62323, 62327, 62347, 62351, 62383, 62401, 62417,
         62423, 62459, 62467, 62473, 62477, 62483, 62497, 62501, 62507, 62533,
         62539, 62549, 62563, 62581, 62591, 62597, 62603, 62617, 62627, 62633,
         62639, 62653, 62659, 62683, 62687, 62701, 62723, 62731, 62743, 62753,
         62761, 62773, 62791, 62801, 62819, 62827, 62851, 62861, 62869, 62873,
         62897, 62903, 62921, 62927, 62929, 62939, 62969, 62971, 62981, 62983,
         62987, 62989, 63029, 63031, 63059, 63067, 63073, 63079, 63097, 63103,
         63113, 63127, 63131, 63149, 63179, 63197, 63199, 63211, 63241, 63247,
         63277, 63281, 63299, 63311, 63313, 63317, 63331, 63337, 63347, 63353,
         63361, 63367, 63377, 63389, 63391, 63397, 63409, 63419, 63421, 63439,
         63443, 63463, 63467, 63473, 63487, 63493, 63499, 63521, 63527, 63533,
         63541, 63559, 63577, 63587, 63589, 63599, 63601, 63607, 63611, 63617,
         63629, 63647, 63649, 63659, 63667, 63671, 63689, 63691, 63697, 63703,
         63709, 63719, 63727, 63737, 63743, 63761, 63773, 63781, 63793, 63799,
         63803, 63809, 63823, 63839, 63841, 63853, 63857, 63863, 63901, 63907,
         63913, 63929, 63949, 63977, 63997, 64007, 64013, 64019, 64033, 64037,
         64063, 64067, 64081, 64091, 64109, 64123, 64151, 64153, 64157, 64171,
         64187, 64189, 64217, 64223, 64231, 64237, 64271, 64279, 64283, 64301,
         64303, 64319, 64327, 64333, 64373, 64381, 64399, 64403, 64433, 64439,
         64451, 64453, 64483, 64489, 64499, 64513, 64553, 64567, 64577, 64579,
         64591, 64601, 64609, 64613, 64621, 64627, 64633, 64661, 64663, 64667,
         64679, 64693, 64709, 64717, 64747, 64763, 64781, 64783, 64793, 64811,
         64817, 64849, 64853, 64871, 64877, 64879, 64891, 64901, 64919, 64921,
         64927, 64937, 64951, 64969, 64997, 65003, 65011, 65027, 65029, 65033,
         65053, 65063, 65071, 65089, 65099, 65101, 65111, 65119, 65123, 65129,
         65141, 65147, 65167, 65171, 65173, 65179, 65183, 65203, 65213, 65239,
         65257, 65267, 65269, 65287, 65293, 65309, 65323, 65327, 65353, 65357,
         65371, 65381, 65393, 65407, 65413, 65419, 65423, 65437, 65447, 65449,
         65479, 65497, 65519, 65521, 65537, 65539, 65543, 65551, 65557, 65563,
         65579, 65581, 65587, 65599, 65609, 65617, 65629, 65633, 65647, 65651,
         65657, 65677, 65687, 65699, 65701, 65707, 65713, 65717, 65719, 65729,
         65731, 65761, 65777, 65789, 65809, 65827, 65831, 65837, 65839, 65843,
         65851, 65867, 65881, 65899, 65921, 65927, 65929, 65951, 65957, 65963,
         65981, 65983, 65993, 66029, 66037, 66041, 66047, 66067, 66071, 66083,
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         66221, 66239, 66271, 66293, 66301, 66337, 66343, 66347, 66359, 66361,
         66373, 66377, 66383, 66403, 66413, 66431, 66449, 66457, 66463, 66467,
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         66587, 66593, 66601, 66617, 66629, 66643, 66653, 66683, 66697, 66701,
         66713, 66721, 66733, 66739, 66749, 66751, 66763, 66791, 66797, 66809,
         66821, 66841, 66851, 66853, 66863, 66877, 66883, 66889, 66919, 66923,
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         67141, 67153, 67157, 67169, 67181, 67187, 67189, 67211, 67213, 67217,
         67219, 67231, 67247, 67261, 67271, 67273, 67289, 67307, 67339, 67343,
         67349, 67369, 67391, 67399, 67409, 67411, 67421, 67427, 67429, 67433,
         67447, 67453, 67477, 67481, 67489, 67493, 67499, 67511, 67523, 67531,
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         68071, 68087, 68099, 68111, 68113, 68141, 68147, 68161, 68171, 68207,
         68209, 68213, 68219, 68227, 68239, 68261, 68279, 68281, 68311, 68329,
         68351, 68371, 68389, 68399, 68437, 68443, 68447, 68449, 68473, 68477,
         68483, 68489, 68491, 68501, 68507, 68521, 68531, 68539, 68543, 68567,
         68581, 68597, 68611, 68633, 68639, 68659, 68669, 68683, 68687, 68699,
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         68909, 68917, 68927, 68947, 68963, 68993, 69001, 69011, 69019, 69029,
         69031, 69061, 69067, 69073, 69109, 69119, 69127, 69143, 69149, 69151,
         69163, 69191, 69193, 69197, 69203, 69221, 69233, 69239, 69247, 69257,
         69259, 69263, 69313, 69317, 69337, 69341, 69371, 69379, 69383, 69389,
         69401, 69403, 69427, 69431, 69439, 69457, 69463, 69467, 69473, 69481,
         69491, 69493, 69497, 69499, 69539, 69557, 69593, 69623, 69653, 69661,
         69677, 69691, 69697, 69709, 69737, 69739, 69761, 69763, 69767, 69779,
         69809, 69821, 69827, 69829, 69833, 69847, 69857, 69859, 69877, 69899,
         69911, 69929, 69931, 69941, 69959, 69991, 69997, 70001, 70003, 70009,
         70019, 70039, 70051, 70061, 70067, 70079, 70099, 70111, 70117, 70121,
         70123, 70139, 70141, 70157, 70163, 70177, 70181, 70183, 70199, 70201,
         70207, 70223, 70229, 70237, 70241, 70249, 70271, 70289, 70297, 70309,
         70313, 70321, 70327, 70351, 70373, 70379, 70381, 70393, 70423, 70429,
         70439, 70451, 70457, 70459, 70481, 70487, 70489, 70501, 70507, 70529,
         70537, 70549, 70571, 70573, 70583, 70589, 70607, 70619, 70621, 70627,
         70639, 70657, 70663, 70667, 70687, 70709, 70717, 70729, 70753, 70769,
         70783, 70793, 70823, 70841, 70843, 70849, 70853, 70867, 70877, 70879,
         70891, 70901, 70913, 70919, 70921, 70937, 70949, 70951, 70957, 70969,
         70979, 70981, 70991, 70997, 70999, 71011, 71023, 71039, 71059, 71069,
         71081, 71089, 71119, 71129, 71143, 71147, 71153, 71161, 71167, 71171,
         71191, 71209, 71233, 71237, 71249, 71257, 71261, 71263, 71287, 71293,
         71317, 71327, 71329, 71333, 71339, 71341, 71347, 71353, 71359, 71363,
         71387, 71389, 71399, 71411, 71413, 71419, 71429, 71437, 71443, 71453,
         71471, 71473, 71479, 71483, 71503, 71527, 71537, 71549, 71551, 71563,
         71569, 71593, 71597, 71633, 71647, 71663, 71671, 71693, 71699, 71707,
         71711, 71713, 71719, 71741, 71761, 71777, 71789, 71807, 71809, 71821,
         71837, 71843, 71849, 71861, 71867, 71879, 71881, 71887, 71899, 71909,
         71917, 71933, 71941, 71947, 71963, 71971, 71983, 71987, 71993, 71999,
         72019, 72031, 72043, 72047, 72053, 72073, 72077, 72089, 72091, 72101,
         72103, 72109, 72139, 72161, 72167, 72169, 72173, 72211, 72221, 72223,
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         96221, 96223, 96233, 96259, 96263, 96269, 96281, 96289, 96293, 96323,
         96329, 96331, 96337, 96353, 96377, 96401, 96419, 96431, 96443, 96451,
         96457, 96461, 96469, 96479, 96487, 96493, 96497, 96517, 96527, 96553,
         96557, 96581, 96587, 96589, 96601, 96643, 96661, 96667, 96671, 96697,
         96703, 96731, 96737, 96739, 96749, 96757, 96763, 96769, 96779, 96787,
         96797, 96799, 96821, 96823, 96827, 96847, 96851, 96857, 96893, 96907,
         96911, 96931, 96953, 96959, 96973, 96979, 96989, 96997, 97001, 97003,
         97007, 97021, 97039, 97073, 97081, 97103, 97117, 97127, 97151, 97157,
         97159, 97169, 97171, 97177, 97187, 97213, 97231, 97241, 97259, 97283,
         97301, 97303, 97327, 97367, 97369, 97373, 97379, 97381, 97387, 97397,
         97423, 97429, 97441, 97453, 97459, 97463, 97499, 97501, 97511, 97523,
         97547, 97549, 97553, 97561, 97571, 97577, 97579, 97583, 97607, 97609,
         97613, 97649, 97651, 97673, 97687, 97711, 97729, 97771, 97777, 97787,
         97789, 97813, 97829, 97841, 97843, 97847, 97849, 97859, 97861, 97871,
         97879, 97883, 97919, 97927, 97931, 97943, 97961, 97967, 97973, 97987,
         98009, 98011, 98017, 98041, 98047, 98057, 98081, 98101, 98123, 98129,
         98143, 98179, 98207, 98213, 98221, 98227, 98251, 98257, 98269, 98297,
         98299, 98317, 98321, 98323, 98327, 98347, 98369, 98377, 98387, 98389,
         98407, 98411, 98419, 98429, 98443, 98453, 98459, 98467, 98473, 98479,
         98491, 98507, 98519, 98533, 98543, 98561, 98563, 98573, 98597, 98621,
         98627, 98639, 98641, 98663, 98669, 98689, 98711, 98713, 98717, 98729,
         98731, 98737, 98773, 98779, 98801, 98807, 98809, 98837, 98849, 98867,
         98869, 98873, 98887, 98893, 98897, 98899, 98909, 98911, 98927, 98929,
         98939, 98947, 98953, 98963, 98981, 98993, 98999, 99013, 99017, 99023,
         99041, 99053, 99079, 99083, 99089, 99103, 99109, 99119, 99131, 99133,
         99137, 99139, 99149, 99173, 99181, 99191, 99223, 99233, 99241, 99251,
         99257, 99259, 99277, 99289, 99317, 99347, 99349, 99367, 99371, 99377,
         99391, 99397, 99401, 99409, 99431, 99439, 99469, 99487, 99497, 99523,
         99527, 99529, 99551, 99559, 99563, 99571, 99577, 99581, 99607, 99611,
         99623, 99643, 99661, 99667, 99679, 99689, 99707, 99709, 99713, 99719,
         99721, 99733, 99761, 99767, 99787, 99793, 99809, 99817, 99823, 99829,
         99833, 99839, 99859, 99871, 99877, 99881, 99901, 99907, 99923, 99929,
         99961, 99971, 99989, 99991], dtype=np.uint32)


def sosuu_hantei(candidate):
    return sosuu[np.searchsorted(sosuu, candidate)] == candidate


def main():
    separator = ' '
    Q = int(input())
    for i in range(Q):
        l, r = map(int, input().split(sep=separator))
        counter = 0
        for candidate in range(l, r + 1, 2):
            if sosuu_hantei(candidate) and sosuu_hantei(
                    int((candidate + 1) / 2)):
                counter += 1
        print(counter)


if __name__ == "__main__":
    main()