# The world criticizes the US for using the old English system of measurements
# instead of the metric system.  In fact, not every aspect of the imperial
# system is flawed compared to metric.  At least our units of volume 
# are arguably superior to metric measurements: two cups = one pint; 
# two pints = one quart, four quarts = one gallon (and two quarts is a 
# half-gallon).  This system is BINARY!  It is base-2 instead of base-10.  

# Your assignment is to write a program that takes a number of quarts,
# pints and cups and convert it to the most efficient representation.
# By this I mean, for example, if the input is 1 quart, 3 pints and 
# 5 cups, you want to convert that to 3 quarts, 1 pint and 1 cup.  
# if the input is 0 quarts, 1 pint and 3 cups, you want to convert that to
# 1 quart, 0 pints and 1 cup. Note that in the most efficient representation
# (one that uses the larger units when possible) the numbers of pints and
# cups is always 0 or 1. 

# hint: x%y returns the remainder after dividing x by y. So x % 2, for example,
# is always either 0 or 1.

q,p,c = input("Enter number of quarts, pints and cups: ")

# write your program to do the conversion.  Suggestion: use new variables
# qa, pa, and ca to represent the answer; don't reuse the original variables.

# Sample output:
#  Enter number of quarts, pints and cups: 1,3,5
#  This is equal to 3 quarts 1 pint and 1 cup

#  Enter number of quarts, pints and cups: 0,1,3
#  This is equal to 1 quart 0 pints and 1 cup

## Note that my output uses the plural or singlar forms correctly.  
#  Can you do that too? This is additonal refinement is to be regarded as
#  a challenge (it is optional).