# Pizza Slicer
# Demonstrates string slicing

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.")

start = None
while start != "":
    start = (input("\nStart: "))
    
    if start:
        start = int(start)

        finish = int(input("Finish: "))

        print("word[", start, ":", finish, "] is", end=" ")
        print(word[start:finish])
  
input("\n\nPress the enter key to exit.")