by@satos___jp
AC
using System;class E{static void Main(){for(int i=51;--i>0;)Console.Write(Math.Sqrt(8*Convert.ToInt32(Console.ReadLine(),2)+1)%2==1?1:0);}}11001101 00111010 00001111 11000000 01111000 00000001 10010100 11111100 11100111 01010001 11001001 10000110 01111101 10101011 11100111 11111001 01101001 11011001 10001000 11010100 00000110 11010001 00101101 01001110 11001100 00000011 10011001 11110011 00101001 00000000 00010101 11101100 00100100 00010111 01011011 00001010 00110111 10011001 10001100 01100100 00011100 00101100 00111101 11010010 00110100 10100011 10111110 01001011 11111101 01000010
00101100100001101010101101100110101111001001001011