#include <ctime>
#include <Windows.h>
#include <iomanip>
using namespace std;

int main() {
	
    while(true)
    {
	    time_t currentTime = time(0);
	    tm* localTime = localtime(&currentTime);
	    int day_of_year = localTime->tm_yday + 1; 
    	int week_of_year = (day_of_year + 6) / 7; 
    	int day_of_week = localTime->tm_wday == 0 ? 7 : localTime->tm_wday + 1;
		string week_days[8] = { "","星期一", "星期二", "星期三", "星期四", "星期五", "星期六", "星期日"};
		cout << "Current time: " 
	    	 << setfill('0') << setw(2) << ((localTime->tm_year+1900)/100+1)<< "Century" << ' '
	   		 << setfill('0') << setw(4) << (localTime->tm_year+1900) << '-'
	         << setfill('0') << setw(2) << (localTime->tm_mon + 1) << '-' 
	         << setfill('0') << setw(2) << localTime->tm_mday << ' ' 
	         << setfill('0') << setw(2) << localTime->tm_hour << ':' 
	         << setfill('0') << setw(2) << localTime->tm_min << ':' 
	         << setfill('0') << setw(2) << localTime->tm_sec 
	         << endl
	         << "今天是" <<setfill('0') << setw(4) << (localTime->tm_year+1900) <<"年第"<<setfill('0') << localTime->tm_yday << "天" << endl
			 << "是全年第" <<week_of_year << "周的" << week_days[day_of_week]  << endl; 
	    Sleep(1000);
	    system("cls");
	}
    return 0;
}