#include<bits/stdc++.h>
using namespace std;
string day[7]={"Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"};
int n; 
int main()
{
	cin>>n;
	if(1<=n&&n<=7)
	{
		cout<<day[n-1];
	}
	else
	{
		cout<<"input error!";
	}
	return 0;
}