var rank_arr = Array();
rank_arr[0] = 0;
rank_arr[1] = 1;
rank_arr[2] = 2;
rank_arr[3] = 3;
rank_arr[4] = 4;
rank_arr[5] = 5;
rank_arr[6] = 6;
rank_arr[7] = 7;
rank_arr[8] = 8;
rank_arr[9] = 9;
rank_arr[10] = 10;
rank_arr[11] = 11;
rank_arr[12] = 12;
rank_arr[13] = 13;
rank_arr[14] = 14;
rank_arr[15] = 15;
rank_arr[16] = 16;
rank_arr[17] = 17;
rank_arr[18] = 18;
rank_arr[20] = 19;
rank_arr[21] = 20;
rank_arr[22] = 21;
rank_arr[23] = 22;
rank_arr[24] = 23;
rank_arr[25] = 24;
rank_arr[26] = 25;
rank_arr[27] = 26;
rank_arr[28] = 27;
rank_arr[29] = 28;
rank_arr[30] = 29;
rank_arr[31] = 30;
rank_arr[32] = 31;
rank_arr[33] = 32;
rank_arr[34] = 33;
rank_arr[35] = 34;
rank_arr[36] = 35;
rank_arr[37] = 36;
rank_arr[38] = 37;
rank_arr[39] = 38;
rank_arr[40] = 39;
rank_arr[41] = 40;
rank_arr[42] = 41;
rank_arr[43] = 42;
rank_arr[44] = 43;
rank_arr[45] = 44;
rank_arr[46] = 45;
rank_arr[47] = 46;
rank_arr[48] = 47;
rank_arr[49] = 48;
rank_arr[19] = 49;
rank_arr[50] = 50;
rank_arr[51] = 51;