package main

import (
	"crypto/md5"
	"encoding/hex"
	"fmt"
)

func md5String(s string) string {
	var s_md5 = md5.Sum([]byte(s))
	var s_slice = s_md5[0:len(s_md5)]
	return hex.EncodeToString((s_slice))
}

func main() {
	var s string
	fmt.Scan(&s)
	var s_md5 = md5String(s)
	var s_md5_md5 = md5String(s_md5)
	fmt.Println(s_md5_md5)
}