解题

#include<iostream>
using namespace std;
int main(){
int n;
cin>>n;

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