View Code of Problem 86

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int a,n;
    scanf("%d %d",&a,&n);
    int x = a,sum = 0;
    for(int i = 0;i < n;i++){
        sum += x;
        x = x *10 +a;
    }
    printf("%d",sum);
    return 0;
}