RosettaCodeData/Task/Find-the-missing-permutation/Go/find-the-missing-permutation-2.go

func main() {
    b := make([]byte, len(given[0]))
    for _, p := range given {
        for i, c := range []byte(p) {
            b[i] ^= c
        }
    }
    fmt.Println(string(b))
}