View Code of Problem 92

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