View Code of Problem 86

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

    printf("%d",sum);
    return 0;
}