简单

#include<iostream>
int n;
using namespace std;
int main(){
cin>>n;
n=n+1;
if(n%71){
cout<<"monday";
}
else if(n%72){
cout<<"tuesday";
}
else if(n%73){
cout<<"wednesday";
}
else if(n%74){
cout<<"thurday";
}
else if(n%75){
cout<<"friday";
}
else if(n%76){
cout<<"saturday";
}
else{
cout<<"sunday";
}
return 0;
}简单粗暴好吧