#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b,c,d,e;
    cin>>a;
    b=a%10*1000;
    c=a/10%10*100;
    d=a/100%10*10;
    e=a/1000;
    b=b+c+d+e; 
    cout<<b;
    return 0;
}
/**************************************************************
	Problem: 1029
	User: wengzihang
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/