View Code of Problem 86

#include<stdio.h>
int main(){
	int a,n;
	scanf("%d %d",&a,&n);
	int x=1;
	int sum=0;
	int i;
	int y=0;
	for(i=0;i<n-1;i++){
    x=x*10;
	y=x+y;
	sum=a*y+sum;
	} 
	int sum2;
	sum2=a*n+sum;
	printf("%d",sum2);
}