/* 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';
}
IC8qIERlbW9udHJhc2kga2FyYWt0ZXIgZGFuIHN0cmluZyAqLwoJIAogI2luY2x1ZGUgPHN0ZGlvLmg+CiAjaW5jbHVkZSA8aW9zdHJlYW0+CiAjaW5jbHVkZSA8c3RyaW5nLmg+IAogdXNpbmcgbmFtZXNwYWNlIHN0ZDsKIAogaW50IG1haW4oKXsKICAgICBzdHJpbmcgc3RyOwogICAgIGNpbiA+PiBzdHI7CiAgICAgZm9yKGludCBpID0gMDsgaSA8IHN0ci5sZW5ndGgoKTsgaSsrKQogICAgICAgICBzdHJbaV0gPSB0b2xvd2VyKHN0cltpXSk7CiAgICAgICAgIAogICAgIGNvdXQgPDwgc3RyIDw8ICdcbic7CiAgICAgCiB9