# Author:  James Tam
# Version: July, 2021

# Learning objectives: 
# 1) Using the 'in' operator in conjunction with if-branching
# 2) Example illustrating the use of the negation 'not' operator

print("Menu options")
print("(a)dd a new player to the game")
print("(r)emove a player from the game")
print("(m)odify player")
print("(q)uit game")
selection = input("Enter your selection: ")
if selection not in ("a", "A", "r",  "R", "m", "M", "q", "Q"):
    print("Please enter one of 'a', 'r', 'm' or 'q' ")