Pythagorean_Theorem_Day.py

month30 = [4, 6, 9, 11]
month31 = [1, 3, 5, 7, 8, 10, 12]

for year in range(17,100):
    for month in range(1,13):
        if month in month30:
            upper = 31
        elif month in month31:
            upper = 32
        else:
            if year % 4 == 0:
                upper = 30
            else:
                upper = 29
        for day in range(1,upper):
            if (day**2 + month ** 2) == (year ** 2):
                print("Year: {}, Month: {}, Day: {}".format(year, month, day))