#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i=0,v=0,z=0,a=0;
	cin>>n;
		i=n%100;
		v=n%1000/100;
		z=n/1000;
		a=i*100+z*10+v;
		cout<<a;
    }

/**************************************************************
	Problem: 1616
	User: huxuanchen
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/