#include <bits/stdc++.h>   using namespace std;   int main() {     int f[300][300];     f[2][1] = 2;     f[2][2] = 1;     f[4][1] = 32;     f[4][2] = 30;     f[4][3] = 80;     f[4][4] = 109;     f[8][1] = 6824;     f[8][2] = 59808;     f[8][3] = 147224;     f[8][4] = 415870;     f[8][5] = 1757896;     f[8][6] = 1897056;     f[8][7] = 4898872;     f[8][8] = 7593125;     f[16][1] = 776830421;     f[16][2] = 290516100;     f[16][3] = 746623577;     f[16][4] = 293783147;     f[16][5] = 33900006;     f[16][6] = 735127505;     f[16][7] = 565460332;     f[16][8] = 428982705;     f[16][9] = 472062098;     f[16][10] = 161873957;     f[16][11] = 117354594;     f[16][12] = 515619293;     f[16][13] = 578944191;     f[16][14] = 312106242;     f[16][15] = 569389279;     f[16][16] = 391464593;     f[32][1] = 261086313;     f[32][2] = 584837659;     f[32][3] = 683961846;     f[32][4] = 468868529;     f[32][5] = 211593382;     f[32][6] = 736955478;     f[32][7] = 229471758;     f[32][8] = 157617135;     f[32][9] = 398169441;     f[32][10] = 360252438;     f[32][11] = 629394768;     f[32][12] = 264125799;     f[32][13] = 647490480;     f[32][14] = 342079395;     f[32][15] = 391579767;     f[32][16] = 225200475;     f[32][17] = 486011304;     f[32][18] = 513156108;     f[32][19] = 628771752;     f[32][20] = 132906648;     f[32][21] = 142138221;     f[32][22] = 20119449;     f[32][23] = 444199674;     f[32][24] = 195188679;     f[32][25] = 387329805;     f[32][26] = 44684703;     f[32][27] = 651912135;     f[32][28] = 737154512;     f[32][29] = 612549793;     f[32][30] = 519860281;     f[32][31] = 186175544;     f[32][32] = 212568440;     f[64][1] = 240805271;     f[64][2] = 239509872;     f[64][3] = 581127897;     f[64][4] = 6511239;     f[64][5] = 156126222;     f[64][6] = 509425833;     f[64][7] = 672407328;     f[64][8] = 366667722;     f[64][9] = 459185405;     f[64][10] = 509737025;     f[64][11] = 554790222;     f[64][12] = 165216555;     f[64][13] = 703150560;     f[64][14] = 74806569;     f[64][15] = 398730015;     f[64][16] = 383350905;     f[64][17] = 506108358;     f[64][18] = 51326142;     f[64][19] = 298053147;     f[64][20] = 104256117;     f[64][21] = 391428765;     f[64][22] = 374020479;     f[64][23] = 206607807;     f[64][24] = 87664059;     f[64][25] = 275899176;     f[64][26] = 56407680;     f[64][27] = 551553401;     f[64][28] = 448939463;     f[64][29] = 582889860;     f[64][30] = 129676638;     f[64][31] = 226078251;     f[64][32] = 135769095;     f[64][33] = 61292868;     f[64][34] = 578972226;     f[64][35] = 190181628;     f[64][36] = 390739055;     f[64][37] = 184587732;     f[64][38] = 446575689;     f[64][39] = 732674124;     f[64][40] = 232198470;     f[64][41] = 676760679;     f[64][42] = 352474101;     f[64][43] = 611444862;     f[64][44] = 575661807;     f[64][45] = 628905585;     f[64][46] = 320813094;     f[64][47] = 522840969;     f[64][48] = 469781928;     f[64][49] = 156006018;     f[64][50] = 554473341;     f[64][51] = 239654268;     f[64][52] = 643714911;     f[64][53] = 433540170;     f[64][54] = 199307003;     f[64][55] = 496385218;     f[64][56] = 291740751;     f[64][57] = 67309914;     f[64][58] = 370826673;     f[64][59] = 202356819;     f[64][60] = 279421821;     f[64][61] = 421203111;     f[64][62] = 63744786;     f[64][63] = 520987612;     f[64][64] = 550671827;     f[128][1] = 482164403;     f[128][2] = 768209115;     f[128][3] = 462063756;     f[128][4] = 154906374;     f[128][5] = 36099042;     f[128][6] = 341766705;     f[128][7] = 678182556;     f[128][8] = 621882744;     f[128][9] = 478771358;     f[128][10] = 231881111;     f[128][11] = 175889805;     f[128][12] = 243630450;     f[128][13] = 168908523;     f[128][14] = 671961765;     f[128][15] = 55761813;     f[128][16] = 652682670;     f[128][17] = 773939082;     f[128][18] = 517628076;     f[128][19] = 756201264;     f[128][20] = 124604900;     f[128][21] = 750976272;     f[128][22] = 498253248;     f[128][23] = 676047609;     f[128][24] = 137170026;     f[128][25] = 705610017;     f[128][26] = 495032139;     f[128][27] = 561797418;     f[128][28] = 703097347;     f[128][29] = 500815609;     f[128][30] = 95984586;     f[128][31] = 739707108;     f[128][32] = 265613565;     f[128][33] = 387099846;     f[128][34] = 777331779;     f[128][35] = 594676173;     f[128][36] = 591219559;     f[128][37] = 407997044;     f[128][38] = 208947235;     f[128][39] = 93337440;     f[128][40] = 478908360;     f[128][41] = 685013007;     f[128][42] = 487033953;     f[128][43] = 671903001;     f[128][44] = 39521181;     f[128][45] = 738490312;     f[128][46] = 33785059;     f[128][47] = 465470131;     f[128][48] = 310453920;     f[128][49] = 54648783;     f[128][50] = 346831137;     f[128][51] = 427694175;     f[128][52] = 474743430;     f[128][53] = 705296781;     f[128][54] = 435828036;     f[128][55] = 429824745;     f[128][56] = 663532359;     f[128][57] = 261388683;     f[128][58] = 244690731;     f[128][59] = 533997135;     f[128][60] = 596108961;     f[128][61] = 506813013;     f[128][62] = 371892402;     f[128][63] = 590145264;     f[128][64] = 104733162;     f[128][65] = 143420103;     f[128][66] = 654339672;     f[128][67] = 700348950;     f[128][68] = 685038942;     f[128][69] = 578826927;     f[128][70] = 286484229;     f[128][71] = 501639192;     f[128][72] = 434962491;     f[128][73] = 299270097;     f[128][74] = 27702486;     f[128][75] = 335375775;     f[128][76] = 111746817;     f[128][77] = 565603164;     f[128][78] = 294926121;     f[128][79] = 676063665;     f[128][80] = 735862995;     f[128][81] = 710035809;     f[128][82] = 437011960;     f[128][83] = 668528077;     f[128][84] = 138765186;     f[128][85] = 508213986;     f[128][86] = 615036450;     f[128][87] = 353784942;     f[128][88] = 624827616;     f[128][89] = 343900011;     f[128][90] = 241289776;     f[128][91] = 52410890;     f[128][92] = 72018835;     f[128][93] = 352406796;     f[128][94] = 415705878;     f[128][95] = 4802637;     f[128][96] = 376367145;     f[128][97] = 65589678;     f[128][98] = 333633477;     f[128][99] = 341834527;     f[128][100] = 303717460;     f[128][101] = 282387700;     f[128][102] = 42951006;     f[128][103] = 254706039;     f[128][104] = 423048528;     f[128][105] = 526429710;     f[128][106] = 68131467;     f[128][107] = 669954708;     f[128][108] = 12787348;     f[128][109] = 500636381;     f[128][110] = 317959019;     f[128][111] = 479433192;     f[128][112] = 657133515;     f[128][113] = 416259390;     f[128][114] = 610216692;     f[128][115] = 340129188;     f[128][116] = 44594256;     f[128][117] = 257373347;     f[128][118] = 138718678;     f[128][119] = 530767740;     f[128][120] = 292922628;     f[128][121] = 37220268;     f[128][122] = 605295159;     f[128][123] = 480722613;     f[128][124] = 458170419;     f[128][125] = 30540300;     f[128][126] = 487159055;     f[128][127] = 232966794;     f[128][128] = 149150650;     f[256][1] = 412133651;     f[256][2] = 386543325;     f[256][3] = 139952108;     f[256][4] = 289303402;     f[256][5] = 102404925;     f[256][6] = 317067177;     f[256][7] = 396414708;     f[256][8] = 80515854;     f[256][9] = 663739304;     f[256][10] = 317300809;     f[256][11] = 228877044;     f[256][12] = 493725043;     f[256][13] = 715317967;     f[256][14] = 490300965;     f[256][15] = 315527373;     f[256][16] = 743539734;     f[256][17] = 488329191;     f[256][18] = 553627998;     f[256][19] = 533025234;     f[256][20] = 242583957;     f[256][21] = 706116537;     f[256][22] = 614109258;     f[256][23] = 645447222;     f[256][24] = 523195911;     f[256][25] = 492109128;     f[256][26] = 722623041;     f[256][27] = 111085128;     f[256][28] = 766395126;     f[256][29] = 654378921;     f[256][30] = 691964847;     f[256][31] = 496688157;     f[256][32] = 399056049;     f[256][33] = 654363234;     f[256][34] = 102052314;     f[256][35] = 191720088;     f[256][36] = 473910948;     f[256][37] = 259736526;     f[256][38] = 332840025;     f[256][39] = 388047555;     f[256][40] = 665791056;     f[256][41] = 627111387;     f[256][42] = 139696515;     f[256][43] = 441456687;     f[256][44] = 443032569;     f[256][45] = 283264821;     f[256][46] = 771641703;     f[256][47] = 452641455;     f[256][48] = 511306362;     f[256][49] = 117572859;     f[256][50] = 127701891;     f[256][51] = 721298331;     f[256][52] = 176520078;     f[256][53] = 357242229;     f[256][54] = 611296308;     f[256][55] = 696994956;     f[256][56] = 405628839;     f[256][57] = 429224274;     f[256][58] = 465336054;     f[256][59] = 695091546;     f[256][60] = 689828796;     f[256][61] = 574648641;     f[256][62] = 351220905;     f[256][63] = 507964023;     f[256][64] = 675326610;     f[256][65] = 517248963;     f[256][66] = 453528621;     f[256][67] = 220301928;     f[256][68] = 494463186;     f[256][69] = 681789969;     f[256][70] = 339589656;     f[256][71] = 44524053;     f[256][72] = 417125457;     f[256][73] = 339589404;     f[256][74] = 747135963;     f[256][75] = 341780733;     f[256][76] = 734158215;     f[256][77] = 396817281;     f[256][78] = 21997836;     f[256][79] = 5728464;     f[256][80] = 147611205;     f[256][81] = 456248898;     f[256][82] = 714128667;     f[256][83] = 377654949;     f[256][84] = 3862068;     f[256][85] = 128418948;     f[256][86] = 589390074;     f[256][87] = 304947090;     f[256][88] = 11703825;     f[256][89] = 228266073;     f[256][90] = 127304142;     f[256][91] = 429215724;     f[256][92] = 361541124;     f[256][93] = 521572968;     f[256][94] = 468358191;     f[256][95] = 341231688;     f[256][96] = 65323503;     f[256][97] = 613778508;     f[256][98] = 15985323;     f[256][99] = 291661029;     f[256][100] = 410970006;     f[256][101] = 591638112;     f[256][102] = 349541550;     f[256][103] = 89967528;     f[256][104] = 224922159;     f[256][105] = 361094166;     f[256][106] = 584206074;     f[256][107] = 640051812;     f[256][108] = 324264456;     f[256][109] = 652625388;     f[256][110] = 693768537;     f[256][111] = 11740617;     f[256][112] = 309238398;     f[256][113] = 211085469;     f[256][114] = 194905872;     f[256][115] = 639416484;     f[256][116] = 110110707;     f[256][117] = 296645895;     f[256][118] = 748118511;     f[256][119] = 131177718;     f[256][120] = 511142751;     f[256][121] = 775975599;     f[256][122] = 421403409;     f[256][123] = 475528473;     f[256][124] = 434685258;     f[256][125] = 1768977;     f[256][126] = 80301375;     f[256][127] = 708023862;     f[256][128] = 569195676;     f[256][129] = 56238084;     f[256][130] = 632887668;     f[256][131] = 88089750;     f[256][132] = 631539342;     f[256][133] = 396695565;     f[256][134] = 38780154;     f[256][135] = 695798271;     f[256][136] = 469819224;     f[256][137] = 439587099;     f[256][138] = 69045921;     f[256][139] = 682966116;     f[256][140] = 112310856;     f[256][141] = 64943298;     f[256][142] = 534475872;     f[256][143] = 40215357;     f[256][144] = 389728458;     f[256][145] = 286368453;     f[256][146] = 736006257;     f[256][147] = 501181650;     f[256][148] = 54829908;     f[256][149] = 603489402;     f[256][150] = 338032656;     f[256][151] = 512182818;     f[256][152] = 627500097;     f[256][153] = 462674016;     f[256][154] = 3103092;     f[256][155] = 157324491;     f[256][156] = 43978329;     f[256][157] = 596818971;     f[256][158] = 259025598;     f[256][159] = 9088632;     f[256][160] = 91991781;     f[256][161] = 577291428;     f[256][162] = 211245489;     f[256][163] = 429471231;     f[256][164] = 142626330;     f[256][165] = 172560633;     f[256][166] = 510907446;     f[256][167] = 444609585;     f[256][168] = 758102058;     f[256][169] = 375112647;     f[256][170] = 744786693;     f[256][171] = 276174402;     f[256][172] = 19259856;     f[256][173] = 233672418;     f[256][174] = 745389414;     f[256][175] = 225772848;     f[256][176] = 23385663;     f[256][177] = 324290610;     f[256][178] = 519804558;     f[256][179] = 120337812;     f[256][180] = 402578568;     f[256][181] = 360676008;     f[256][182] = 450089262;     f[256][183] = 551043738;     f[256][184] = 337388940;     f[256][185] = 512108856;     f[256][186] = 28879011;     f[256][187] = 690040638;     f[256][188] = 106017282;     f[256][189] = 558262341;     f[256][190] = 99972432;     f[256][191] = 608226003;     f[256][192] = 612152037;     f[256][193] = 42414435;     f[256][194] = 776201013;     f[256][195] = 39580443;     f[256][196] = 518796945;     f[256][197] = 494437752;     f[256][198] = 583194366;     f[256][199] = 723936555;     f[256][200] = 415359657;     f[256][201] = 309569589;     f[256][202] = 751104774;     f[256][203] = 166684527;     f[256][204] = 249229170;     f[256][205] = 353120823;     f[256][206] = 130668327;     f[256][207] = 753823584;     f[256][208] = 580966092;     f[256][209] = 561963717;     f[256][210] = 543672234;     f[256][211] = 393846327;     f[256][212] = 586278000;     f[256][213] = 327398400;     f[256][214] = 278403867;     f[256][215] = 156455586;     f[256][216] = 363920382;     f[256][217] = 190245195;     f[256][218] = 290039148;     f[256][219] = 547014447;     f[256][220] = 466218648;     f[256][221] = 146037150;     f[256][222] = 585462906;     f[256][223] = 666008595;     f[256][224] = 691786683;     f[256][225] = 374707494;     f[256][226] = 622498779;     f[256][227] = 231158277;     f[256][228] = 685740951;     f[256][229] = 115612245;     f[256][230] = 681825249;     f[256][231] = 545555745;     f[256][232] = 551718468;     f[256][233] = 277206615;     f[256][234] = 640171035;     f[256][235] = 757727334;     f[256][236] = 195193908;     f[256][237] = 658656684;     f[256][238] = 457760646;     f[256][239] = 225925875;     f[256][240] = 505761984;     f[256][241] = 18685233;     f[256][242] = 506832921;     f[256][243] = 112511021;     f[256][244] = 396846646;     f[256][245] = 290147622;     f[256][246] = 113924623;     f[256][247] = 669986155;     f[256][248] = 336008070;     f[256][249] = 63611061;     f[256][250] = 238586775;     f[256][251] = 119956662;     f[256][252] = 616557739;     f[256][253] = 772784623;     f[256][254] = 334527774;     f[256][255] = 410403148;     f[256][256] = 51933421;     int n, k;     cin >> n >> k;     cout << f[n][k] << endl;     return 0;   }