View Code of Problem 93

#include<stdio.h>
#include<math.h>
int he(int a){
	int i,sum;
	for (sum=0,i=1;i<a;i++)
		if(a%i==0)
			sum+=i;
	return sum;
}
int main(){
	int i,n,m;
    scanf("%d%d",&m,&n);
	for(i=m;i<=n;i++)
			{
				if(i==he(he(i)) &&i<he(i))
					printf("%d %d\n",i,he(i));	
		}
			
	return 0;	
}