求赞（题解）

#include <bits/stdc++.h>
using namespace std;
int main(){
	int day=1,guo;
    cin>>guo;
    day=day+guo;
    day%=7;
    if(day==0) cout<<"sunday";
    else if(day==1) cout<<"monday";
    else if(day==2) cout<<"tuesday";
    else if(day==3) cout<<"wednesday";
    else if(day==4) cout<<"thursday";
    else if(day==5) cout<<"friday";
    else cout<<"saturday";
	return 0;
}