```
#include<bits/stdc++.h>
using namespace std;
int Palindromes(int n){
if(n<10)return 1;
int nn=n,he=0;
while(nn){
he=he*10+nn%10;
nn/=10;
}
if(he==n)return 1;
else return 0;
}
int prime(int x){
for(int i=2;i<=sqrt(x);i++)if(x%i==0) return 0;
return 1;
}
int a,b;
int main(){
cin>>a>>b;
for(int i=a;i<=b;i++){
if(Palindromes(i) && prime(i)){
cout<<i<<endl;
}
}
return 0;
}
```
by SHUYONGRUI @ 2024-04-06 10:58:37