View Code of Problem 92

#include<stdio.h>
#include<math.h>
int sNum(int x){
	int i;
	if(x==1||x==0)
		return 0;
	else{
		for(i=2;i<=sqrt(x);i++)
			if(x%i==0)
				return 0;
		return 1;
	}
}
int huiNum(int x){
	int temp=x,sum=0;
	while(x>0){
		sum=sum*10+x%10;
		x=x/10;
	}
	if(sum==temp)
		return 1;
	else
		return 0;
	
}
int main(){
	int n,m,i,count=0;
	scanf("%d %d",&m,&n);
	for(i=m;i<=n;i++)
		if(sNum(i)==1&&huiNum(i)==1){
			count++;
			if(count%5==0)
				printf("%6d\n",i);
			else
				printf("%6d",i);
		}
			
}