#include <bits/stdc++.h>
using namespace std;
bool fss(int i){
	for(int o=2;o<i;o++)if(i%o==0)return 1;
	return 0;
}
int main(){
	for(int i=100;i<1000;i++)if(fss(i)&&fss(i/10)&&fss(i/100))cout<<i<<"\n";
	return 0;
}

/**************************************************************
	Problem: 1143
	User: zhouhongyi
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/