golfscript, 42 bytes

Result

WA

Code [DL]

"\n"/{{48-}%2base 1or8*1+.,{.*1$=},,\;}%~;

stdin

00001010
00000011
00001111
10011001
10000010
10111110
10011111
01001110
10101011
00011101
00111111
01101001
01111000
00010110
11000100
11111011
11010001
00000000
11101011
10101111
10011101
11010010
11100111
01011011
01101100
11011001
01110000
10001000
11111101
00100100
00110111
11111010
00101010
11110100
00000110
01011011
00101101
11100101
10111011
00010101
11011101
10111101
00011100
10100100
01101011
11100110
00000001
01111000
01000010
01111100

stdout

01100000001010000000000000000000000000000000000100

stderr

strace