题解

#include <bits/stdc++.h>
using namespace std;

int main() {
int n,a;
cin>>n;
a=n+1;
if(a>=7)a=n%7+1;
if(a1){cout<<"monday";}
else if(a2){cout<<"tuesday";}
else if(a3){cout<<"wednesday";}
else if(a4){cout<<"thursday";}
else if(a5){cout<<"friday";}
else if(a6){cout<<"saturday";}
else if(a==7){cout<<"sunday";}
return 0;
}