View Code of Problem 86

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