recurse, 44 bytes

Result

WA

Code [DL]

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

stdin

00000011
00000110
01011011
00110111
01000010
00110011
00011100
10101000
11011000
00101101
00001111
01111100
10011001
01101001
11100000
11111101
10101011
01100110
10110001
00001010
10011111
00001100
00111111
01100111
10111001
00101101
10111110
00000001
01001110
00000000
00001011
11101110
11011011
11100110
00100010
01111000
11010101
10100110
11010010
00101001
10001000
10110011
11101001
11010011
00010101
00100100
00110111
01101111
11100111
01010011

stdout

03

stderr

strace