def do_calculation():
    print("Lets " + command + " some numbers.")
    input1 = input("Number 1>")
    input2 = input("Number 2>")
    number1 = int(input1)
    number2 = int(input2)
    if command == "add":
        result = number1 + number2
        operator = " + "
    elif command == "subtract":
        result = number1 - number2
        operator = " - "
    output = str(result)

    print(input1 + operator + input2 + " = " + output)



print("Hi I am John B, your personal bot.")
print("lets get started.")
print(" ")
print(" ")

users_name = input("How would you like to be addressed? ")
print(" ")
print(" ")
print("Welcome " + users_name + " and lets go on an adventure")

finished = False
while finished == False:
    print("Available commands are - add or subtract or average or highest . ")
    print(" to stop the program enter quit.")
    command = input("Enter a command:-  ")
    if command == "add" or command == "plus":
       do_calculation()
    elif command == "subtract":
        do_calculation()
    elif command == "average":
        how_many = input("How many numbers ? ")
        how_many = int(how_many)
        total = 0
        for number_count in range(how_many):
            number = input("Enter number " + str(number_count) + "> ")
            total = total+int(number)
        result = total/how_many
        print("The average = " + str(result))
    elif command == "highest":
        target = 0

        how_many = input("How many numbers ? ")
        how_many = int(how_many)
        total = 0

        for number_count in range(how_many):
            number = input("Enter number " + str(number_count) + "> ")
           #  print("targ 1 " + str(target))
            if target < int(number):
                target = int(number)
            #     print("targ 2 " + str(target))

        print("The highest = " + str(target))
    elif command == "quit":
        finished = True
    else:
        print("sorry not a valid command")