#!/usr/bin/python
#
# dow3.py by Verbal
# Uses Zeller's Congruence to display the day-of-week
#
def zeller(m,d,y) :
# m = input("Month? ")
# d = input(" Day? ")
# y = input(" Year? ")
t = [ 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4]
# y -= ( m < 3 )
if ( m < 3 ) :
y = y - 1
z = ( y + y/4 - y/100 + y/400 + t[m-1] + d ) % 7
# Sun0, Mon1, Tue2, Wed3, Thr4, Fri5, Sat6
day = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ]
return day[z]
#
# ---- main -----
m = input("Range 1-12 Month? ")
d = input("Range 1-31 Day? ")
y = input(" Year? ")
print "Day-of-week=", zeller(m,d,y)
