#include<bits/stdc++.h> 
using namespace std;
int main()
{
	int n,g,s,b,q,h,y;
	cin>>n;
	g=n%10*1000;
	s=n/10%10*100;
	b=n/100%10*10;
	q=n/1000;
	h=g+s+b+q;
	y=h-n;
	cout<<y;
	
	
	
	 
}
/**************************************************************
	Problem: 1702
	User: yangjunwen
	Language: C++
	Result: Wrong Answer
****************************************************************/