/* Demontrasi karakter dan string */
#include <stdio.h>
#include <iostream>
#include <string.h>
using namespace std;
int main(){
string str;
cin >> str;
for(int i = 0; i < str.length(); i++)
str[i] = tolower(str[i]);
cout << str << '\n';
}
LyogRGVtb250cmFzaSBrYXJha3RlciBkYW4gc3RyaW5nICovCgkgCiNpbmNsdWRlIDxzdGRpby5oPgojaW5jbHVkZSA8aW9zdHJlYW0+CiNpbmNsdWRlIDxzdHJpbmcuaD4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCSAKaW50IG1haW4oKXsKCXN0cmluZyBzdHI7CgljaW4gPj4gc3RyOwoJZm9yKGludCBpID0gMDsgaSA8IHN0ci5sZW5ndGgoKTsgaSsrKQoJICAgIHN0cltpXSA9IHRvbG93ZXIoc3RyW2ldKTsKCSAKCWNvdXQgPDwgc3RyIDw8ICdcbic7Cn0=