#include <iostream>
#include <string>

using namespace std;

int main() {
    int startDay = 3; // Ví dụ, bắt đầu từ thứ Tư

    switch (startDay) {
        case 0: cout << "Chu Nhat" << endl;
        case 1: cout << "Thu Hai" << endl;
        case 2: cout << "Thu Ba" << endl;
        case 3: cout << "Thu Tu" << endl;
        case 4: cout << "Thu Nam" << endl;
        case 5: cout << "Thu Sau" << endl;
        case 6: cout << "Thu Bay" << endl;
            break;
        default: cout << "Ngay khong hop le" << endl;
    }

    return 0;
}