#include<iostream>
int main()
{
    using namespace std;
    int num;
    cout<<"请输入数字:";cin>>num;
    switch(num)
    {
    case 0: cout<<"Today is Sun";break;
    case 1: cout<<"Today is Mon";break;
    case 2: cout<<"Today is Tue";break;
    };
    cout<<endl;
}