View Code of Problem 92

#include<stdio.h>
#include<math.h>
int main(){
	int m,n,i,j,k=1;
	scanf("%d %d",&m,&n);
	for(i=m;i<=n;i++){
		int flag=0;
		for(j=2;j<=sqrt(i);i++){
			if(i%j==0){
				flag=1;
				break;
			}
		}
		if(flag==0){
			int num=i,sum=0;
			while(num>0){
				sum=sum*10+num%10;
				num=num/10;
			}
			if(sum==i){
				printf("%6d",i);
				if(k%5==0) printf("\n");
				k++;
			}
		}
	}
}