View Code of Problem 86

#include<bits/stdc++.h>

using namespace std;

int main()
{
    int a,n;
    cin >> a >> n;
    int sum = 0;
    for(int i = 0; i < n; i++){
        sum += a;
        a = a * 10 +a % 10 ;
    }
    cout << sum;
}