123456

#include<bits/stdc++.h>
using namespace std;
int main()
{
int a;
cin>>a;
switch(a){
case 9:cout<<"除夕"<<endl;break;
case 10:cout<<"初一"<<endl;break;
case 11:cout<<"初二"<<endl;break;
case 12:cout<<"初三"<<endl;break;
case 13:cout<<"初四"<<endl;break;
case 14:cout<<"初五"<<endl;break;
case 15:cout<<"初六"<<endl;break;
case 16:cout<<"初七"<<endl;break;
}
return 0;
}