Consider an array that has no prime numbers, and none of its elements has any prime digit. It would start with: `[1,4,6,8,9,10,14,16,18,..]`. 

`12` and `15` are not in the list because `2` and `5` are primes.

You will be given an integer `n` and your task will be return the number at that index in the array. 
For example:
```
solve(0) = 1
solve(2) = 6
``` 

More examples in the test cases.

Good luck!

If you like Prime Katas, you will enjoy this Kata: [Simple Prime Streaming](https://www.codewars.com/kata/5a908da30025e995880000e3)

Source: codewars | Difficulty: EASY

Starter code: def solve(n):
	

Solutions:
(n, forbid) = (100000, set('2357'))
(sieve, notPrimes) = ([0] * (n + 1), [1])
for i in range(2, n + 1):
	if sieve[i]:
		if not forbid & set(str(i)):
			notPrimes.append(i)
	else:
		for j in range(i ** 2, n + 1, i):
			sieve[j] = 1

def solve(n):
	return notPrimes[n]


solve = lambda n: [1, 4, 6, 8, 9, 10, 14, 16, 18, 40, 44, 46, 48, 49, 60, 64, 66, 68, 69, 80, 81, 84, 86, 88, 90, 91, 94, 96, 98, 99, 100, 104, 106, 108, 110, 111, 114, 116, 118, 119, 140, 141, 144, 146, 148, 160, 161, 164, 166, 168, 169, 180, 184, 186, 188, 189, 190, 194, 196, 198, 400, 404, 406, 408, 410, 411, 414, 416, 418, 440, 441, 444, 446, 448, 460, 464, 466, 468, 469, 480, 481, 484, 486, 488, 489, 490, 494, 496, 498, 600, 604, 606, 608, 609, 610, 611, 614, 616, 618, 640, 644, 646, 648, 649, 660, 664, 666, 668, 669, 680, 681, 684, 686, 688, 689, 690, 694, 696, 698, 699, 800, 801, 804, 806, 808, 810, 814, 816, 818, 819, 840, 841, 844, 846, 848, 849, 860, 861, 864, 866, 868, 869, 880, 884, 886, 888, 889, 890, 891, 894, 896, 898, 899, 900, 901, 904, 906, 908, 909, 910, 914, 916, 918, 940, 944, 946, 948, 949, 960, 961, 964, 966, 968, 969, 980, 981, 984, 986, 988, 989, 990, 994, 996, 998, 999, 1000, 1001, 1004, 1006, 1008, 1010, 1011, 1014, 1016, 1018, 1040, 1041, 1044, 1046, 1048, 1060, 1064, 1066, 1068, 1080, 1081, 1084, 1086, 1088, 1089, 1090, 1094, 1096, 1098, 1099, 1100, 1101, 1104, 1106, 1108, 1110, 1111, 1114, 1116, 1118, 1119, 1140, 1141, 1144, 1146, 1148, 1149, 1160, 1161, 1164, 1166, 1168, 1169, 1180, 1184, 1186, 1188, 1189, 1190, 1191, 1194, 1196, 1198, 1199, 1400, 1401, 1404, 1406, 1408, 1410, 1411, 1414, 1416, 1418, 1419, 1440, 1441, 1444, 1446, 1448, 1449, 1460, 1461, 1464, 1466, 1468, 1469, 1480, 1484, 1486, 1488, 1490, 1491, 1494, 1496, 1498, 1600, 1604, 1606, 1608, 1610, 1611, 1614, 1616, 1618, 1640, 1641, 1644, 1646, 1648, 1649, 1660, 1661, 1664, 1666, 1668, 1680, 1681, 1684, 1686, 1688, 1689, 1690, 1691, 1694, 1696, 1698, 1800, 1804, 1806, 1808, 1809, 1810, 1814, 1816, 1818, 1819, 1840, 1841, 1844, 1846, 1848, 1849, 1860, 1864, 1866, 1868, 1869, 1880, 1881, 1884, 1886, 1888, 1890, 1891, 1894, 1896, 1898, 1899, 1900, 1904, 1906, 1908, 1909, 1910, 1911, 1914, 1916, 1918, 1919, 1940, 1941, 1944, 1946, 1948, 1960, 1961, 1964, 1966, 1968, 1969, 1980, 1981, 1984, 1986, 1988, 1989, 1990, 1991, 1994, 1996, 1998, 4000, 4004, 4006, 4008, 4009, 4010, 4011, 4014, 4016, 4018, 4040, 4041, 4044, 4046, 4048, 4060, 4061, 4064, 4066, 4068, 4069, 4080, 4081, 4084, 4086, 4088, 4089, 4090, 4094, 4096, 4098, 4100, 4101, 4104, 4106, 4108, 4109, 4110, 4114, 4116, 4118, 4119, 4140, 4141, 4144, 4146, 4148, 4149, 4160, 4161, 4164, 4166, 4168, 4169, 4180, 4181, 4184, 4186, 4188, 4189, 4190, 4191, 4194, 4196, 4198, 4199, 4400, 4401, 4404, 4406, 4408, 4410, 4411, 4414, 4416, 4418, 4419, 4440, 4444, 4446, 4448, 4449, 4460, 4461, 4464, 4466, 4468, 4469, 4480, 4484, 4486, 4488, 4489, 4490, 4491, 4494, 4496, 4498, 4499, 4600, 4601, 4604, 4606, 4608, 4609, 4610, 4611, 4614, 4616, 4618, 4619, 4640, 4641, 4644, 4646, 4648, 4660, 4661, 4664, 4666, 4668, 4669, 4680, 4681, 4684, 4686, 4688, 4689, 4690, 4694, 4696, 4698, 4699, 4800, 4804, 4806, 4808, 4809, 4810, 4811, 4814, 4816, 4818, 4819, 4840, 4841, 4844, 4846, 4848, 4849, 4860, 4864, 4866, 4868, 4869, 4880, 4881, 4884, 4886, 4888, 4890, 4891, 4894, 4896, 4898, 4899, 4900, 4901, 4904, 4906, 4908, 4910, 4911, 4914, 4916, 4918, 4940, 4941, 4944, 4946, 4948, 4949, 4960, 4961, 4964, 4966, 4968, 4980, 4981, 4984, 4986, 4988, 4989, 4990, 4991, 4994, 4996, 4998, 6000, 6001, 6004, 6006, 6008, 6009, 6010, 6014, 6016, 6018, 6019, 6040, 6041, 6044, 6046, 6048, 6049, 6060, 6061, 6064, 6066, 6068, 6069, 6080, 6081, 6084, 6086, 6088, 6090, 6094, 6096, 6098, 6099, 6100, 6104, 6106, 6108, 6109, 6110, 6111, 6114, 6116, 6118, 6119, 6140, 6141, 6144, 6146, 6148, 6149, 6160, 6161, 6164, 6166, 6168, 6169, 6180, 6181, 6184, 6186, 6188, 6189, 6190, 6191, 6194, 6196, 6198, 6400, 6401, 6404, 6406, 6408, 6409, 6410, 6411, 6414, 6416, 6418, 6419, 6440, 6441, 6444, 6446, 6448, 6460, 6461, 6464, 6466, 6468, 6480, 6484, 6486, 6488, 6489, 6490, 6494, 6496, 6498, 6499, 6600, 6601, 6604, 6606, 6608, 6609, 6610, 6611, 6614, 6616, 6618, 6640, 6641, 6644, 6646, 6648, 6649, 6660, 6664, 6666, 6668, 6669, 6680, 6681, 6684, 6686, 6688, 6690, 6694, 6696, 6698, 6699, 6800, 6801, 6804, 6806, 6808, 6809, 6810, 6811, 6814, 6816, 6818, 6819, 6840, 6844, 6846, 6848, 6849, 6860, 6861, 6864, 6866, 6868, 6880, 6881, 6884, 6886, 6888, 6889, 6890, 6891, 6894, 6896, 6898, 6900, 6901, 6904, 6906, 6908, 6909, 6910, 6914, 6916, 6918, 6919, 6940, 6941, 6944, 6946, 6948, 6960, 6964, 6966, 6968, 6969, 6980, 6981, 6984, 6986, 6988, 6989, 6990, 6994, 6996, 6998, 6999, 8000, 8001, 8004, 8006, 8008, 8010, 8014, 8016, 8018, 8019, 8040, 8041, 8044, 8046, 8048, 8049, 8060, 8061, 8064, 8066, 8068, 8080, 8084, 8086, 8088, 8090, 8091, 8094, 8096, 8098, 8099, 8100, 8104, 8106, 8108, 8109, 8110, 8114, 8116, 8118, 8119, 8140, 8141, 8144, 8146, 8148, 8149, 8160, 8164, 8166, 8168, 8169, 8180, 8181, 8184, 8186, 8188, 8189, 8190, 8194, 8196, 8198, 8199, 8400, 8401, 8404, 8406, 8408, 8409, 8410, 8411, 8414, 8416, 8418, 8440, 8441, 8444, 8446, 8448, 8449, 8460, 8464, 8466, 8468, 8469, 8480, 8481, 8484, 8486, 8488, 8489, 8490, 8491, 8494, 8496, 8498, 8499, 8600, 8601, 8604, 8606, 8608, 8610, 8611, 8614, 8616, 8618, 8619, 8640, 8644, 8646, 8648, 8649, 8660, 8661, 8664, 8666, 8668, 8680, 8684, 8686, 8688, 8690, 8691, 8694, 8696, 8698, 8800, 8801, 8804, 8806, 8808, 8809, 8810, 8811, 8814, 8816, 8818, 8840, 8841, 8844, 8846, 8848, 8860, 8864, 8866, 8868, 8869, 8880, 8881, 8884, 8886, 8888, 8889, 8890, 8891, 8894, 8896, 8898, 8899, 8900, 8901, 8904, 8906, 8908, 8909, 8910, 8911, 8914, 8916, 8918, 8919, 8940, 8944, 8946, 8948, 8949, 8960, 8961, 8964, 8966, 8968, 8980, 8981, 8984, 8986, 8988, 8989, 8990, 8991, 8994, 8996, 8998, 9000, 9004, 9006, 9008, 9009, 9010, 9014, 9016, 9018, 9019, 9040, 9044, 9046, 9048, 9060, 9061, 9064, 9066, 9068, 9069, 9080, 9081, 9084, 9086, 9088, 9089, 9090, 9094, 9096, 9098, 9099, 9100, 9101, 9104, 9106, 9108, 9110, 9111, 9114, 9116, 9118, 9119, 9140, 9141, 9144, 9146, 9148, 9149, 9160, 9164, 9166, 9168, 9169, 9180, 9184, 9186, 9188, 9189, 9190, 9191, 9194, 9196, 9198, 9400, 9401, 9404, 9406, 9408, 9409, 9410, 9411, 9414, 9416, 9418, 9440, 9441, 9444, 9446, 9448, 9449, 9460, 9464, 9466, 9468, 9469, 9480, 9481, 9484, 9486, 9488, 9489, 9490, 9494, 9496, 9498, 9499, 9600, 9604, 9606, 9608, 9609, 9610, 9611, 9614, 9616, 9618, 9640, 9641, 9644, 9646, 9648, 9660, 9664, 9666, 9668, 9669, 9680, 9681, 9684, 9686, 9688, 9690, 9691, 9694, 9696, 9698, 9699, 9800, 9801, 9804, 9806, 9808, 9809, 9810, 9814, 9816, 9818, 9819, 9840, 9841, 9844, 9846, 9848, 9849, 9860, 9861, 9864, 9866, 9868, 9869, 9880, 9881, 9884, 9886, 9888, 9889, 9890, 9891, 9894, 9896, 9898, 9899, 9900, 9904, 9906, 9908, 9909, 9910, 9911, 9914, 9916, 9918, 9919, 9940, 9944, 9946, 9948, 9960, 9961, 9964, 9966, 9968, 9969, 9980, 9981, 9984, 9986, 9988, 9989, 9990, 9991, 9994, 9996, 9998, 9999, 10000, 10001, 10004, 10006, 10008, 10010, 10011, 10014, 10016, 10018, 10019, 10040, 10041, 10044, 10046, 10048, 10049, 10060, 10064, 10066, 10068, 10080, 10081, 10084, 10086, 10088, 10089, 10090, 10094, 10096, 10098, 10100, 10101, 10104, 10106, 10108, 10109, 10110, 10114, 10116, 10118, 10119, 10140, 10144, 10146, 10148, 10149, 10160, 10161, 10164, 10166, 10168, 10180, 10184, 10186, 10188, 10189, 10190, 10191, 10194, 10196, 10198, 10199, 10400, 10401, 10404, 10406, 10408, 10409, 10410, 10411, 10414, 10416, 10418, 10419, 10440, 10441, 10444, 10446, 10448, 10449, 10460, 10461, 10464, 10466, 10468, 10469, 10480, 10481, 10484, 10486, 10488, 10489, 10490, 10491, 10494, 10496, 10498, 10600, 10604, 10606, 10608, 10609, 10610, 10611, 10614, 10616, 10618, 10619, 10640, 10641, 10644, 10646, 10648, 10649, 10660, 10661, 10664, 10666, 10668, 10669, 10680, 10681, 10684, 10686, 10688, 10689, 10690, 10694, 10696, 10698, 10699, 10800, 10801, 10804, 10806, 10808, 10809, 10810, 10811, 10814, 10816, 10818, 10819, 10840, 10841, 10844, 10846, 10848, 10849, 10860, 10864, 10866, 10868, 10869, 10880, 10881, 10884, 10886, 10888, 10890, 10894, 10896, 10898, 10899, 10900, 10901, 10904, 10906, 10908, 10910, 10911, 10914, 10916, 10918, 10919, 10940, 10941, 10944, 10946, 10948, 10960, 10961, 10964, 10966, 10968, 10969, 10980, 10981, 10984, 10986, 10988, 10989, 10990, 10991, 10994, 10996, 10998, 10999, 11000, 11001, 11004, 11006, 11008, 11009, 11010, 11011, 11014, 11016, 11018, 11019, 11040, 11041, 11044, 11046, 11048, 11049, 11060, 11061, 11064, 11066, 11068, 11080, 11081, 11084, 11086, 11088, 11089, 11090, 11091, 11094, 11096, 11098, 11099, 11100, 11101, 11104, 11106, 11108, 11109, 11110, 11111, 11114, 11116, 11118, 11140, 11141, 11144, 11146, 11148, 11160, 11164, 11166, 11168, 11169, 11180, 11181, 11184, 11186, 11188, 11189, 11190, 11191, 11194, 11196, 11198, 11199, 11400, 11401, 11404, 11406, 11408, 11409, 11410, 11414, 11416, 11418, 11419, 11440, 11441, 11444, 11446, 11448, 11449, 11460, 11461, 11464, 11466, 11468, 11469, 11480, 11481, 11484, 11486, 11488, 11490, 11494, 11496, 11498, 11499, 11600, 11601, 11604, 11606, 11608, 11609, 11610, 11611, 11614, 11616, 11618, 11619, 11640, 11641, 11644, 11646, 11648, 11649, 11660, 11661, 11664, 11666, 11668, 11669, 11680, 11684, 11686, 11688, 11690, 11691, 11694, 11696, 11698, 11800, 11804, 11806, 11808, 11809, 11810, 11811, 11814, 11816, 11818, 11819, 11840, 11841, 11844, 11846, 11848, 11849, 11860, 11861, 11864, 11866, 11868, 11869, 11880, 11881, 11884, 11886, 11888, 11889, 11890, 11891, 11894, 11896, 11898, 11899, 11900, 11901, 11904, 11906, 11908, 11910, 11911, 11914, 11916, 11918, 11919, 11940, 11944, 11946, 11948, 11949, 11960, 11961, 11964, 11966, 11968, 11980, 11984, 11986, 11988, 11989, 11990, 11991, 11994, 11996, 11998, 11999, 14000, 14001, 14004, 14006, 14008, 14010, 14014, 14016, 14018, 14019, 14040, 14041, 14044, 14046, 14048, 14049, 14060, 14061, 14064, 14066, 14068, 14069, 14080, 14084, 14086, 14088, 14089, 14090, 14091, 14094, 14096, 14098, 14099, 14100, 14101, 14104, 14106, 14108, 14109, 14110, 14111, 14114, 14116, 14118, 14119, 14140, 14141, 14144, 14146, 14148, 14160, 14161, 14164, 14166, 14168, 14169, 14180, 14181, 14184, 14186, 14188, 14189, 14190, 14191, 14194, 14196, 14198, 14199, 14400, 14404, 14406, 14408, 14409, 14410, 14414, 14416, 14418, 14440, 14441, 14444, 14446, 14448, 14460, 14464, 14466, 14468, 14469, 14480, 14481, 14484, 14486, 14488, 14490, 14491, 14494, 14496, 14498, 14499, 14600, 14601, 14604, 14606, 14608, 14609, 14610, 14611, 14614, 14616, 14618, 14619, 14640, 14641, 14644, 14646, 14648, 14649, 14660, 14661, 14664, 14666, 14668, 14680, 14681, 14684, 14686, 14688, 14689, 14690, 14691, 14694, 14696, 14698, 14800, 14801, 14804, 14806, 14808, 14809, 14810, 14811, 14814, 14816, 14818, 14819, 14840, 14841, 14844, 14846, 14848, 14849, 14860, 14861, 14864, 14866, 14868, 14880, 14881, 14884, 14886, 14888, 14889, 14890, 14894, 14896, 14898, 14899, 14900, 14901, 14904, 14906, 14908, 14909, 14910, 14911, 14914, 14916, 14918, 14919, 14940, 14941, 14944, 14946, 14948, 14949, 14960, 14961, 14964, 14966, 14968, 14980, 14981, 14984, 14986, 14988, 14989, 14990, 14991, 14994, 14996, 14998, 14999, 16000, 16004, 16006, 16008, 16009, 16010, 16011, 16014, 16016, 16018, 16019, 16040, 16041, 16044, 16046, 16048, 16049, 16060, 16064, 16066, 16068, 16080, 16081, 16084, 16086, 16088, 16089, 16090, 16094, 16096, 16098, 16099, 16100, 16101, 16104, 16106, 16108, 16109, 16110, 16114, 16116, 16118, 16119, 16140, 16144, 16146, 16148, 16149, 16160, 16161, 16164, 16166, 16168, 16169, 16180, 16181, 16184, 16186, 16188, 16190, 16191, 16194, 16196, 16198, 16199, 16400, 16401, 16404, 16406, 16408, 16409, 16410, 16414, 16416, 16418, 16419, 16440, 16441, 16444, 16446, 16448, 16449, 16460, 16461, 16464, 16466, 16468, 16469, 16480, 16484, 16486, 16488, 16489, 16490, 16491, 16494, 16496, 16498, 16499, 16600, 16601, 16604, 16606, 16608, 16609, 16610, 16611, 16614, 16616, 16618, 16640, 16641, 16644, 16646, 16648, 16660, 16664, 16666, 16668, 16669, 16680, 16681, 16684, 16686, 16688, 16689, 16690, 16694, 16696, 16698, 16800, 16801, 16804, 16806, 16808, 16809, 16810, 16814, 16816, 16818, 16819, 16840, 16841, 16844, 16846, 16848, 16849, 16860, 16861, 16864, 16866, 16868, 16869, 16880, 16881, 16884, 16886, 16888, 16890, 16891, 16894, 16896, 16898, 16899, 16900, 16904, 16906, 16908, 16909, 16910, 16911, 16914, 16916, 16918, 16919, 16940, 16941, 16944, 16946, 16948, 16949, 16960, 16961, 16964, 16966, 16968, 16969, 16980, 16984, 16986, 16988, 16989, 16990, 16991, 16994, 16996, 16998, 16999, 18000, 18001, 18004, 18006, 18008, 18009, 18010, 18011, 18014, 18016, 18018, 18019, 18040, 18044, 18046, 18048, 18060, 18064, 18066, 18068, 18069, 18080, 18081, 18084, 18086, 18088, 18090, 18091, 18094, 18096, 18098, 18099, 18100, 18101, 18104, 18106, 18108, 18109, 18110, 18111, 18114, 18116, 18118, 18140, 18141, 18144, 18146, 18148, 18160, 18161, 18164, 18166, 18168, 18180, 18184, 18186, 18188, 18189, 18190, 18194, 18196, 18198, 18400, 18404, 18406, 18408, 18409, 18410, 18411, 18414, 18416, 18418, 18419, 18440, 18441, 18444, 18446, 18448, 18449, 18460, 18464, 18466, 18468, 18469, 18480, 18484, 18486, 18488, 18489, 18490, 18491, 18494, 18496, 18498, 18499, 18600, 18601, 18604, 18606, 18608, 18609, 18610, 18611, 18614, 18616, 18618, 18619, 18640, 18641, 18644, 18646, 18648, 18649, 18660, 18664, 18666, 18668, 18669, 18680, 18681, 18684, 18686, 18688, 18689, 18690, 18694, 18696, 18698, 18699, 18800, 18801, 18804, 18806, 18808, 18809, 18810, 18811, 18814, 18816, 18818, 18819, 18840, 18841, 18844, 18846, 18848, 18849, 18860, 18861, 18864, 18866, 18868, 18880, 18881, 18884, 18886, 18888, 18889, 18890, 18891, 18894, 18896, 18898, 18900, 18901, 18904, 18906, 18908, 18909, 18910, 18914, 18916, 18918, 18940, 18941, 18944, 18946, 18948, 18949, 18960, 18961, 18964, 18966, 18968, 18969, 18980, 18981, 18984, 18986, 18988, 18989, 18990, 18991, 18994, 18996, 18998, 18999, 19000, 19004, 19006, 19008, 19010, 19011, 19014, 19016, 19018, 19019, 19040, 19041, 19044, 19046, 19048, 19049, 19060, 19061, 19064, 19066, 19068, 19080, 19084, 19086, 19088, 19089, 19090, 19091, 19094, 19096, 19098, 19099, 19100, 19101, 19104, 19106, 19108, 19109, 19110, 19111, 19114, 19116, 19118, 19119, 19140, 19144, 19146, 19148, 19149, 19160, 19161, 19164, 19166, 19168, 19169, 19180, 19184, 19186, 19188, 19189, 19190, 19191, 19194, 19196, 19198, 19199, 19400, 19401, 19404, 19406, 19408, 19409, 19410, 19411, 19414, 19416, 19418, 19419, 19440, 19444, 19446, 19448, 19449, 19460, 19461, 19464, 19466, 19468, 19480, 19481, 19484, 19486, 19488, 19490, 19491, 19494, 19496, 19498, 19499, 19600, 19601, 19604, 19606, 19608, 19610, 19611, 19614, 19616, 19618, 19619, 19640, 19641, 19644, 19646, 19648, 19649, 19660, 19664, 19666, 19668, 19669, 19680, 19684, 19686, 19688, 19689, 19690, 19691, 19694, 19696, 19698, 19800, 19804, 19806, 19808, 19809, 19810, 19811, 19814, 19816, 19818, 19840, 19844, 19846, 19848, 19849, 19860, 19864, 19866, 19868, 19869, 19880, 19881, 19884, 19886, 19888, 19890, 19894, 19896, 19898, 19899, 19900, 19901, 19904, 19906, 19908, 19909, 19910, 19911, 19914, 19916, 19918, 19940, 19941, 19944, 19946, 19948, 19960, 19964, 19966, 19968, 19969, 19980, 19981, 19984, 19986, 19988, 19989, 19990, 19994, 19996, 19998, 19999, 40000, 40001, 40004, 40006, 40008, 40010, 40011, 40014, 40016, 40018, 40019, 40040, 40041, 40044, 40046, 40048, 40049, 40060, 40061, 40064, 40066, 40068, 40069, 40080, 40081, 40084, 40086, 40088, 40089, 40090, 40091, 40094, 40096, 40098, 40100, 40101, 40104, 40106, 40108, 40109, 40110, 40114, 40116, 40118, 40119, 40140, 40141, 40144, 40146, 40148, 40149, 40160, 40161, 40164, 40166, 40168, 40180, 40181, 40184, 40186, 40188, 40190, 40191, 40194, 40196, 40198, 40199, 40400, 40401, 40404, 40406, 40408, 40409, 40410, 40411, 40414, 40416, 40418, 40419, 40440, 40441, 40444, 40446, 40448, 40449, 40460, 40461, 40464, 40466, 40468, 40469, 40480, 40481, 40484, 40486, 40488, 40489, 40490, 40491, 40494, 40496, 40498, 40600, 40601, 40604, 40606, 40608, 40610, 40611, 40614, 40616, 40618, 40619, 40640, 40641, 40644, 40646, 40648, 40649, 40660, 40661, 40664, 40666, 40668, 40669, 40680, 40681, 40684, 40686, 40688, 40689, 40690, 40691, 40694, 40696, 40698, 40800, 40804, 40806, 40808, 40809, 40810, 40811, 40814, 40816, 40818, 40840, 40844, 40846, 40848, 40860, 40861, 40864, 40866, 40868, 40869, 40880, 40881, 40884, 40886, 40888, 40889, 40890, 40891, 40894, 40896, 40898, 40899, 40900, 40901, 40904, 40906, 40908, 40909, 40910, 40911, 40914, 40916, 40918, 40919, 40940, 40941, 40944, 40946, 40948, 40960, 40964, 40966, 40968, 40969, 40980, 40981, 40984, 40986, 40988, 40989, 40990, 40991, 40994, 40996, 40998, 40999, 41000, 41001, 41004, 41006, 41008, 41009, 41010, 41014, 41016, 41018, 41019, 41040, 41041, 41044, 41046, 41048, 41049, 41060, 41061, 41064, 41066, 41068, 41069, 41080, 41084, 41086, 41088, 41089, 41090, 41091, 41094, 41096, 41098, 41099, 41100, 41101, 41104, 41106, 41108, 41109, 41110, 41111, 41114, 41116, 41118, 41119, 41140, 41144, 41146, 41148, 41160, 41164, 41166, 41168, 41169, 41180, 41181, 41184, 41186, 41188, 41190, 41191, 41194, 41196, 41198, 41199, 41400, 41401, 41404, 41406, 41408, 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from itertools import compress

def sieve(n):
	n += 1
	r = [False, True] * (n // 2) + [True]
	r[1] = False
	r[2] = True
	for i in range(3, int(n ** 0.5) + 1, 2):
		if r[i]:
			r[i * i::2 * i] = [False] * ((n + 2 * i - 1 - i * i) // (2 * i))
	r = list(compress(range(len(r)), r))
	if r[-1] % 2 == 0:
		return r[:-1]
	return r
primes = set(sieve(10 ** 6))
res = []
factors = {'2', '3', '5', '7'}
for i in range(1, 10 ** 6):
	if i not in primes and set(str(i)).isdisjoint(factors):
		res.append(i)

def solve(n):
	return res[n]


limit = 50000
sieve = [0] * 2 + list(range(2, limit))
for i in range(2, limit):
	for j in range(i * i, limit, i):
		sieve[j] = 0
primes = {i for i in sieve if i}
(p, i, li) = (['2', '3', '5', '7'], 0, [])
while len(li) <= 3000:
	if i and all((k not in p for k in str(i))) and (i not in primes):
		li.append(i)
	i += 1
solve = lambda n: li[n]


import numpy as np
s = np.ones(100000)
s[1] = s[4::2] = 0
for i in range(3, int(len(s) ** 0.5) + 1, 2):
	if not s[i]:
		continue
	s[i * i::i] = 0
PRIME_DIGITS = {'2', '3', '5', '7'}
the_array = [i for (i, x) in enumerate(s) if not x and PRIME_DIGITS.isdisjoint(str(i))]

def solve(n):
	return the_array[n]


from itertools import product
LIMIT = 10 ** 5
primes = set((n for n in range(3, LIMIT, 2) if all((n % x for x in range(3, int(n ** 0.5) + 1, 2)))))
(non_primes, digits, n) = ([], ['14689'], 0)
while n < LIMIT:
	for n in product(*digits):
		n = int(''.join(n))
		if n not in primes:
			non_primes.append(n)
	digits.append('014689')

def solve(n):
	return non_primes[n]


from itertools import count
import numpy as np
primes = np.ones(1000000)
primes[:2] = 0
for i in range(2, len(primes)):
	if primes[i]:
		primes[i * i::i] = 0
non_primes = [1, 4, 6, 8, 9, 10, 14, 16, 18]

def gen_non_primes():
	for x in count(non_primes[-1] + 1):
		if primes[x]:
			continue
		s = str(x)
		if '2' in s or '3' in s or '5' in s or ('7' in s):
			continue
		non_primes.append(x)
		yield x

def solve(n):
	if n < len(non_primes):
		return non_primes[n]
	for (i, np) in enumerate(gen_non_primes(), len(non_primes)):
		if i == n:
			return np


def is_prime(n):
	if n < 2:
		return False
	elif n == 2:
		return True
	elif n % 2 == 0:
		return False
	x = 3
	while x * x <= n:
		if n % x == 0:
			return False
		x += 2
	return True
p = [x for x in range(1, 50001) if not is_prime(x) and all((d not in '2357' for d in str(x)))]

def solve(n):
	return p[n]