#include <iostream>
#include <cstdlib>
#include <string>   //for class string
#include <chrono>   //for class system_clock
#include <ctime>    //for the function localtime
using namespace std;

int main()
{
	const string a[][7] {   //number of rows, number of columns
		{"Sunday",    "Monday", "Tuesday",  "Wednesday", "Thursday",   "Friday",   "Saturday"}, //English
		{"Domingo",   "Lunes",  "Martes",   "Miercoles", "Jueves",     "Viernes",  "Sabado"},   //Spanish
		{"Dimoanche", "Lundi",  "Mardi",    "Mecredi",   "Jeudi",      "Vendredi", "Samedi"},   //French
		{"Sonntag",   "Montag", "Dienstag", "Mittwoch",  "Donnerstag", "Freitag",  "Samstag"}   //German
 	};

	const size_t n {size(a)};    //the number of rows (number of languages)
	const size_t m {size(a[0])}; //the number of columns, if you need it

	cout << "Choose your language:\n"   //not the way to use a computer
		<< "\t0 for English\n"      //"\t" is the tab character
		<< "\t1 for Spanish\n"
		<< "\t2 for French\n"
		<< "\t3 for German\n";

	int language {0};
	cin >> language;

	if (!cin) {
		cerr << "Sorry, couldn't input a number.\n";
		return EXIT_FAILURE;
	}

	if (language < 0 || language >= n) {
		cerr << "Sorry, language must be in the range 0 to "
                        << n-1 << " inclusive.\n";

		return EXIT_FAILURE;
	}

	const auto now {chrono::system_clock::now()};
	const time_t t {chrono::system_clock::to_time_t(now)};
        const tm *const p {localtime(&t)};

        const int weekday {p->tm_wday}; //in range 0 to 6 inclusive; 0 is Sunday

	if (weekday < 0 || weekday >= 6) {
		cerr << "bad weekday "
			<< weekday << " must be in range 0 to 6 inclusive.\n";
		return EXIT_FAILURE;
	}

	cout << a[language][weekday] << "\n";
	return EXIT_SUCCESS;
}