# your code goes here
from datetime import date, timedelta
from calendar import monthrange
days_in_month = lambda dt: monthrange(dt.year, dt.month)[1]
today = date(year=2019, month=1, day=31)
first_day = today.replace(day=1) + timedelta(days_in_month(today))
print(first_day)
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCgpmcm9tIGRhdGV0aW1lIGltcG9ydCBkYXRlLCB0aW1lZGVsdGEKZnJvbSBjYWxlbmRhciBpbXBvcnQgbW9udGhyYW5nZQoKZGF5c19pbl9tb250aCA9IGxhbWJkYSBkdDogbW9udGhyYW5nZShkdC55ZWFyLCBkdC5tb250aClbMV0KdG9kYXkgPSBkYXRlKHllYXI9MjAxOSwgbW9udGg9MSwgZGF5PTMxKQpmaXJzdF9kYXkgPSB0b2RheS5yZXBsYWNlKGRheT0xKSArIHRpbWVkZWx0YShkYXlzX2luX21vbnRoKHRvZGF5KSkKcHJpbnQoZmlyc3RfZGF5KQ==