#include<bits/stdc++.h>
using namespace std;
int reverse(int a)
{
	int b=0;
	while(a>0)
	{
		b=10*b+a%10;
		a/=10;
	}
	return b;
}
long long sushu(long long num)
{
	int j=0;
	for(int i=2;i<=sqrt(num);i++)
	{
		if(num%i==0)j++;
	}
	if(j==0)return 1;
	else return 0;	
}
int main()
{
    long long m,n,ans,jilu;
	cin>>m>>n;
	for(int i=m;i<=n;i++)
	{
		if(sushu(i)==1&&sushu(reverse(i))==1)
		{
			cout<<i;
			jilu=i;
			break;
		}
	}
	for(int i=jilu+1;i<=n;i++)
	{
		if(sushu(i)==1&&sushu(reverse(i))==1)
		cout<<","<<i;
	}
	return 0;	
}

哪个大佬帮忙看一下