#include<bits/stdc++.h>
using namespace std;
int heshu(int n)
{
    int cnt = 0;
    for(int i=2;i<=sqrt(n);i++)
    {
        if(n%i==0)
        {
            cnt++;
        }
    }
    if(cnt!=0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}
int main()
{
    for(int i=100;i<=999;i++)
    {
        int k1=i%100;
        int k2=i%10;
        int a1=i/100;
        int a2=i/10%10;
        if(heshu(i)==0&&heshu(k1)==0&&heshu(k2)==1&&a1!=1&&a1!=0&&k2!=1&&k2!=0&&a2!=1&&a2!=0)
        {
            cout<<i<<endl;
        }
    }
    return 0;
}
/**************************************************************
	Problem: 1143
	User: wangyuxin
	Language: C++
	Result: Wrong Answer
****************************************************************/