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

#include<bits/stdc++.h>
using namespace std;
int main()
{
	string s1;
	cin>>s1;
    for(int i=s1.size()-1;i>=0;i--){
        cout<<s1[i];
    }
	return 0;
}

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

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