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

import re
import sys
import datetime
import vobject

card = vobject.vCard()
cal = vobject.iCalendar()

R_FMT = (
    (re.compile('^[0-9]{8}$'), '%Y%m%d'),
    (re.compile('^--[0-9]{4}$'), '--%m%d'),
    (re.compile('^[0-9]{4}-[0-9]{2}-[0-9]{2}$'), '%Y-%m-%d')
)

def vobj_str2date(content_line):
    v = content_line.value
    for r, f in R_FMT:
        if r.match(v):
            return datetime.datetime.strptime(v, f)
    raise ValueError(f'cannot parse specified string {v}')


for o in vobject.readComponents(sys.stdin):
    if 'bday' not in o.contents:
        continue
    #print(o.fn, o.bday, type(o.bday), o.bday.value)
    name = o.fn.value
    date = vobj_str2date(o.bday)
    if date.year <= 1900:
        date = date.replace(year=datetime.datetime.now().year)
    date_end = date + datetime.timedelta(days=1)
    cal.add('vevent')
    cal.vevent_list[-1].add('summary').value = o.fn.value
    cal.vevent_list[-1].add('dtstart').value = date.date()
    cal.vevent_list[-1].add('dtend').value = date_end.date()
    cal.vevent_list[-1].add('rrule').value = 'FREQ=YEARLY'
print(cal.serialize())