by@kurgm
ERROR
loop{(a=gets)&&p (1+8*a.to_i 2)**0.5%1>0?0:1}01111001 01001010 10101001 01101001 00100100 11110000 10011001 01110110 00010111 00001010 11010010 00010101 10001000 01000010 01010110 00000000 00101001 10101100 01110000 00000110 01001110 00001111 11010101 01111110 00101101 01011011 00010101 00011000 10101011 00000001 11001111 11011101 11001110 11100110 00011100 11011010 00110111 10111110 10110101 00010101 01111000 10011110 00000011 11111101 01011100 01001111 00001011 01000101 11100111 11010110