第100帖

#include<iostream>
using namespace std;
int main(){
int n;
cin>>n;
if(n%70)cout<<"monday";
if(n%71)cout<<"tuesday";
if(n%72)cout<<"wednesday";
if(n%73)cout<<"thursday";
if(n%74)cout<<"friday";
if(n%75)cout<<"saturday";
if(n%7==6)cout<<"sunday";
return 0;
}