View Code of Problem 86

#include<stdio.h>
#include<math.h>
void main()
{	

	int i,j,x,n,sum=0,y=0;
	scanf("%d%d",&x,&n);
	for(i=0;i<=n;i++){
		sum+=y;
		y=0;
		for(j=i;j>=0;j--)
			y+=x*pow(10,j);
	}
	printf("%d",sum);
}