Result

WA

Code [DL]

while a=gets()b=a.to_i 2
i=0
while b>0
b-=i+=1
end
p b==0 ?1:0end

stdin

01010001
11100111
00010011
00000001
11101111
10111110
01111000
00010101
10011001
10001000
10101011
00111101
01010100
10100100
11000101
00101101
11110110
01101001
10011111
00000110
01011011
10001111
11100010
00000011
01001110
00011100
00001111
10011100
01110010
01010111
10101000
01110001
00001011
00001001
11111101
00100100
01000010
11010010
01010011
10011011
01101111
00001010
00110111
00111000
10001000
01011010
00000100
00000000
00011110
01000010

stdout

Syntax error in /volume/CODE:1: unexpected token: b

while a=gets()b=a.to_i 2
              ^

stderr

strace