#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,g,s,b,q;
    cin>>n;
    g=n%10;
    s=n/10%10;
    b=n/100;
    cout<<g*100+s*10+b;
	return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	while(n){
		int t=n%10;
		if(t) cout<<t;
		n/=10;
	}
	return 0;
}