#include <bits/stdc++.h>
using namespace std;
bool a(int n){
	bool l=0;
	
	{
		for(int j=2;j<n;j++){
			if(n%j==0){
			l=1;
			break;
			}	
		}
	if(n<2) l=0;		
	}
	return l;
}
int main(){
	int i;
	for(i=100;i<=999;i++){
		if(a(i)&&a(i/10)&&a(i/100)){
			cout<<i<<endl;
		}	
	}
	return 0;
	}
/**************************************************************
	Problem: 1143
	User: fzy001
	Language: C++
	Result: Accepted
	Time:13 ms
	Memory:2072 kb
****************************************************************/