by@hakatashi
WA
<?php for(;$c=fgets(STDIN);)$j=sqrt(8*bindec($c)+1&&echo 1^$j<=>floor($j);
11011011 00010101 10011110 00010000 01100110 00000100 10110000 01001110 00011100 01001011 00000000 11100111 00111100 01011011 11111101 00001011 11110110 00000110 11011101 10101011 01001110 10011001 01001111 10001111 01101001 01000101 00110111 10001000 00000001 10100011 00001010 10010001 00100100 00000011 11101001 11010010 10111110 01100010 11101000 01111100 00001111 11001110 01111000 10001110 00101101 01100001 00000000 01000010 11011001 10111001
PHP Parse error: syntax error, unexpected 'echo' (T_ECHO) in /volume/CODE on line 1