fernando, 78 bytes

Result

WA

Code [DL]

$
   v{m}2a}s}3{<vs}1{]<
>0{>[{%?%{5}r @>}}s{ @1%$
           #%9<      >0%$
$

stdin

10011111
01111000
00010101
00000011
00111000
01110011
01000100
00101101
00110111
01011011
10010110
00000110
10001000
01000010
01101001
11010011
11110001
10101011
00100011
00000000
10111110
10010111
11101110
01111011
10011001
00011111
01001110
01110110
10111001
11100100
01001011
11011010
01101111
11000111
00011100
01010110
00001111
11100111
00101110
00001010
11101100
00111111
00100001
11111101
00000110
00100100
00101101
11010010
00000001
11101111

stdout

stderr

strace