View Code of Problem 86

#include<iostream>

using namespace std;

int main(void){
	int m,n,sum,k;
	cin>>m>>n;
	sum=m;
	k=m;
	for(int i=1;i<n;i++){
		k=k*10+m;
		sum+=k;
	}
	cout<< sum << endl;
}