View Code of Problem 86

#include<stdio.h>
#include<math.h>
int main()
{
	int a,n;
	scanf("%d %d",&a,&n);
	int i;
	int sum = 0;
	int p,a2=0;
	for( i=0; i<n; i++ )
	{
		p = a * pow(10,i);
		a2 = a2 + p;
		sum += a2;
	}
	printf("%d",sum);
	return 0;
}