tj

#include<bits/stdc++.h>
using namespace std;
int main(){

	int n;
	cin >> n;
	n = (n + 1) % 7;
	if(n == 1){
    cout << "monday";
    }
	else if(n == 2){
    cout << "tuesday";
	}
	else if(n == 3){
    cout << "wednesday";
	}
	else if(n == 4){
    cout << "thursday";
	}
	else if(n == 5){
    cout << "friday";
	}
	else if(n == 6){
    cout << "saturday";
	}
	else if(n == 0){
    cout << "sunday";
}
return 0;
}