#! /usr/bin/env python3
# -*- coding: utf-8 -*-

import calendar
import datetime

year = 2023

for year in range(datetime.datetime.now().year, datetime.datetime.now().year+3):
    justDays = []
    germanMonthAndDays = []
    iso = []
    print ("Every third Wednesday in a month (without December) for the year", year )
    for month in range(1, 12):
        c = 0
        for day in range(1, 22): # 22th is the latest a wednesday can be in a month. if thursday is the 1st
            if calendar.weekday(year, month, day) == calendar.WEDNESDAY:
                c += 1
                if c == 3:
                    justDays.append(f"{day}")
                    germanMonthAndDays.append(f"{day}.{month}.")
                    iso.append(f"{year}-{month}-{day}")
                    break
    print (" ".join(justDays))
    print (" ".join(germanMonthAndDays))
    print (" ".join(iso))
    print()