View Code of Problem 86

#include<stdio.h>
int main()
{
  int a,n,num,s=1,i,sum=0;
  scanf("%d%d",&a,&n);
  num=0;
  for(i=0;i<n;i++)
  {
    num+=a*s;
    s=s*10;
      sum+=num;
  }
  printf("%d",sum);
  return 0;
}