fun main(args: Array<String>) {
    val list = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
    val str = readLine() as String

    for (ch in str) {
        print(list[(list.indexOf(ch) + 52 + 26)%52])
    }
    println()
}