recurse, 44 bytes

Result

WA

Code [DL]

$
...v{m}2a}s}3{<<<<<<<
>0{>[{%?{5}r.%...^
$

stdin

00000110
11101001
00000110
10011010
10001000
01001011
01001110
01010001
00110111
10111110
00101101
00001111
00111111
00000000
01011011
11101100
00001010
11111101
10101011
01100011
11000000
00100011
00001011
11110101
00111101
10111010
10011001
11010010
10101011
01111000
01110000
11100100
11001000
00010101
01101001
00000001
11001101
00100100
11100111
00010000
10100101
10010111
01000100
01000010
01111011
00000011
10111000
11001011
01000011
00011100

stdout

03

stderr

strace