Weekday

# Weekday, a script to calculate the day of the week

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

print "Weekday will calculate the day of the week for you."

month = raw_input("Enter the month (the whole word): ")
day = int(raw_input("Enter the day of the month: "))
year = int(raw_input("Enter the year: "))

if year < 1500 or year > 2699:
    print "Error: this program cannot find dates before 1500 or after 2699."


if month in ("April", "July"):
    month_code = 0

elif month in ("January", "October"):
    month_code = 1

elif month in ("May"):
    month_code = 2

elif month in ("August"):
    month_code = 3

elif month in ("February", "March", "November"):
    month_code = 4

elif month in ("June"):
    month_code = 5

elif month in ("September", "December"):
    month_code = 6

year_breaker = str(year)

if int(year_breaker[:2]) == 15 or int(year_breaker[:2]) == 19 or int(year_breaker[:2]) == 23:
    century_code = 0

elif int(year_breaker[:2]) == 18 or int(year_breaker[:2]) == 22 or int(year_breaker[:2]) == 26:
    century_code = 2

elif int(year_breaker[:2]) == 17 or int(year_breaker[:2]) == 21 or int(year_breaker[:2]) == 25:
    century_code = 4

elif int(year_breaker[:2]) == 16 or int(year_breaker[:2]) == 20 or int(year_breaker[:2]) == 24:
    century_code = 6


if month in ("January", "February") and year % 4 == 0 and year % 100 != 0:
    total = day + month_code + (int(year_breaker[-2:]) // 4) + int(year_breaker[-2:]) + century_code - 1

elif month in ("January", "February") and year % 400 == 0:
    total = day + month_code + (int(year_breaker[-2:]) // 4) + int(year_breaker[-2:]) + century_code - 1

else:
    total = day + month_code + (int(year_breaker[-2:]) // 4) + int(year_breaker[-2:]) + century_code


if total % 7 == 0:
    print "%s %s, %s was a Saturday." % (month, day, year)

elif total % 7 == 1:
    print "%s %s, %s was a Sunday." % (month, day, year)

elif total % 7 == 2:
    print "%s %s, %s was a Monday." % (month, day, year)

elif total % 7 == 3:
    print "%s %s, %s was a Tuesday." % (month, day, year)

elif total % 7 == 4:
    print "%s %s, %s was a Wednesday." % (month, day, year)

elif total % 7 == 5:
    print "%s %s, %s was a Thursday." % (month, day, year)

elif total % 7 == 6 :
    print "%s %s, %s was a Friday." % (month, day, year)