#include<bits/stdc++.h>
using namespace std;
int main() {
	int n,j,w,b,s,g,q,h;
	cin>>n;
	g=n%10;
	s=n/10%10;
	b=n/100%10;
	q=n/1000;
	j=g+b+s+q;
	h=j+n;
	cout<<h;
}

/**************************************************************
	Problem: 1617
	User: chenjunlin
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2072 kb
****************************************************************/