by@moratorium08
WA
for(c=new java.util.Scanner(java.lang.System.in);;)print(+!(sqrt(8*parseInt(c.nextLine(),2)+1)%1))
00000110 11010000 01010011 00101000 11111101 01011011 10011110 11111111 10011001 00010101 00000000 11010010 11010011 10011001 10101011 01011101 00000011 10111110 11011100 00000001 10001000 10110111 01101001 10011111 01000010 00101101 01111000 00011100 10111101 10001111 00110110 01001110 01010111 01010010 01111100 00001010 11100010 11001010 01110101 01111000 11100111 00101010 01001011 00001111 00100100 11011000 11101001 10000011 01010000 00110111
js: uncaught JavaScript runtime exception: ReferenceError: "sqrt" is not defined.