def dayOfProgrammer(year):
    day = 13
    
    # in 1918, February 14th was the 32nd day
    if year==1918:
        day+=14-1
    # Gregorian. either Divisible by 400, Divisible by 4 and not divisible by 100
    elif year>=1919 and (year%400==0 or (year%4==0 and not year%100==0)):
        day-=1
    # Julian (1700 to 1917).  leap years are divisible by 4
    elif year<=1917 and year%4==0:
        day-=1
    
    return f'{day:02}.09.{year:04}'