#include<bits/stdc++.h> 
using namespace std;
int main(){
	int a,x,h,g,s,b,q;
	cin>>a;
	g=a%10;
	s=a/10%10;
	b=a/100%10;
	q=a/1000;
	x=g+s+b+q;
	h=a+x;
	cout<<h<<endl;
	
}
/**************************************************************
	Problem: 1617
	User: sucongyi
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/