Result

WA

Code [DL]

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

stdin

00001010
10010111
11100111
01101101
00000011
01001011
11110011
10001010
00010111
11111100
00101010
01000010
00000110
00100100
00000001
10001000
10111001
00100100
01101011
10111110
00011100
00011111
11101001
10111111
11010010
10000111
11001110
11010010
00110111
01110010
10011001
01101001
01111000
00101100
00101101
00001111
00100111
00010101
11111101
00011110
11101101
10011101
00000000
01100110
10101001
00110011
10101011
01001110
01011011
01110100

stdout

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

while a=gets() 
              ^

stderr

strace