View Code of Problem 86

#include<stdio.h>
int main(){
	int a;
	int n;
	scanf("%d%d",&a,&n);
	int sum=0;
	int t=a;
	for(int i=1;i<=n;i++){
		sum+=a;
		a=a*10+t;
	}
	printf("%d",sum);
	
	return 0;
}