package correct func Rot14(s string) (result string) { for _, r := range s { if r >= 'a' && r <= 'z' { if r >= 'm' { r -= 12 } else { r += 14 } } else if r >= 'A' && r <= 'Z' { if r >= 'M' { r -= 12 } else { r += 14 } } result += string(r) } return result }