#include<bits/stdc++.h>
using namespace std;
bool sushu(int n){
    bool r=false;
    for(int i=2;i<=sqrt(n);i++){
        if (n%i==0){
            r=true;//合数
        }
    }
    if(n<=1){
        r=false;
    }
    return r;
}
int main(){
    for(int i=100;i<=999;i++){
        int a,b;
        a=i/100;
        b=i/10;
        if(sushu(i)==true&& sushu(a) ==true&& sushu(b)==true)
        {
            cout<<i<<endl;
        }
    }
}

/**************************************************************
	Problem: 1143
	User: luyanchen
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2072 kb
****************************************************************/