vim, 33 bytes

Result

WA

Code [DL]

00000000  71 7a 22 61 78 22 62 78  22 63 78 22 64 78 22 65  |qz"ax"bx"cx"dx"e|
00000010  78 22 66 78 22 67 78 73  12 3d 61 62 63 64 65 66  |x"fx"gxs.=abcdef|
00000020  67                                                |g|
00000021

Disassembly

qz"ax"bx"cx"dx"ex"fx"gxs<C-R>=abcdefg

stdin

11010101
00101101
01001110
00110001
10001101
10111110
00000110
00001010
10001000
11110110
00101101
00011100
10011001
11000011
01011011
11001111
01111000
00001001
01000010
00001100
00000000
00000011
00010101
11011011
11111011
11010111
10110011
01101101
00100100
00011001
11111101
00111011
10100011
00001111
11100111
00110101
00101110
10000101
11100011
10101011
00010100
11111101
11010010
00111111
11010110
00100101
01101001
11101001
00000001
00110111

stdout

11010101
00101101
01001110
00110001
10001101
10111110
00000110
00001010
10001000
11110110
00101101
00011100
10011001
11000011
01011011
11001111
01111000
00001001
01000010
00001100
00000000
00000011
00010101
11011011
11111011
11010111
10110011
01101101
00100100
00011001
11111101
00111011
10100011
00001111
11100111
00110101
00101110
10000101
11100011
10101011
00010100
11111101
11010010
00111111
11010110
00100101
01101001
11101001
00000001
00110111

stderr

strace