node, 73 bytes

Result

WA

Duration

632ms

Code [DL]

console.log((""+require("fs").readFileSync(z=0)).replace(/./g,q=>z^=q%2))

stdin

0001010010100000010010100101111101011011001000000101000100101110001001011001010101001111010011111101

stdout

0001100011000000011100111001010110010010001111111001111000110100001110010001100110001010011101010110

stderr

strace