View Code of Problem 86

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