#include<bits/stdc++.h>
using namespace std;
int main(){
	int x;
	cin>>x;
	cout<<x+((x+1)*10)+((x+2)*100)+((x+3)*1000)+((x+4)*10000);
}

/**************************************************************
	Problem: 1621
	User: baizhoudeyueguang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/