def checkLeapYear(year):
    if (year % 4 != 0):	#if (year is not divisible by 4) then (it is a common year)
        return False
    elif (year % 100 != 0):	#else if (year is not divisible by 100) then (it is a leap year)
        return True
    elif (year % 400 != 0):	#else if (year is not divisible by 400) then (it is a common year)
        return False
    else: #else (it is a leap year)
        return True