#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,a,b,c,y;
	cin>>n;
	a=n%10;
	b=n/10%10;
	c=n/100;
	y=a*100000+b*10000+c*1000+c*100+b*10+a;
	cout<<y; 
	
}

/**************************************************************
	Problem: 1620
	User: zhengzihao3
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/