include
include<iostream>//<bits/stdc++.h></iostream>
using namespace std;
int main () {
string nums;
cin >> nums;
reverse(nums.begin(),nums.end());
cout << nums;
return 0;
}
using namespace std;
int main () {
string nums;
cin >> nums;
reverse(nums.begin(),nums.end());
cout << nums;
return 0;
}