# Pizza Slicer
# Demonstrates string slicing
# Michael Dawson - 1/27/03

word = "pizza"

print \
"""
  Slicing 'Cheat Sheet'

 0   1   2   3   4   5
 +---+---+---+---+---+ 
 | p | i | z | z | a | 
 +---+---+---+---+---+ 
-5  -4  -3  -2  -1

"""

print "Enter the beginning and ending index for your slice of 'pizza'."
print "Press the enter key at 'Begin' to exit."

begin = None
while begin != "":
    begin = (raw_input("\nBegin: "))
    
    if begin:
        begin = int(begin)

        end = int(raw_input("End: "))

        print "word[", begin, ":", end, "]\t\t",
        print word[begin:end]
  
raw_input("\n\nPress the enter key to exit.")