#include <stdio.h>

#include <iostream>

enum Week

{

    Mon,//星期一

    Tue,//星期二

    Wed,//星期三

    Thu,//星期四

    Fri=0,//星期五

    Sat,//星期六

    Sun,//星期日

};

int main(int argc,char **argv)

{

    Week week = Week::Fri;

    Week week1 = Week::Mon;

    std::cout<<week<<week1;

    return 0;

};