maxchips = 21
chipsleft = 0
chipstaken = 0
player1wins = 0
player2wins = 0

while True:
    name1 = str(input("what is your name "))
    if name1. isalpha()== True:
        break
    else:
        print("That is not an acceptable name, please try again.")
while True:
    name2 = str(input("what is your name "))
    if name2. isalpha()== True:
        break
    else:
        print("That is not an acceptable name, please try again.")

while True:
   try :
       roundsplayed = int(input("How many rounds do you want to play"))
       if roundsplayed  < 1 or roundsplayed  > 5 :
         print("please choose a number between 1 and 5")
       else :
           break
   except :
       print("you didnt put in a number, what am i supposed to do with it")


while roundsplayed > 0 :
    chipsleft = maxchips
    while chipsleft > 0 :
        print("there are ",chipsleft,"chips left")
        print("player 1 has won",player1wins,"times")
        print("player 2 has won",player2wins,"times")
        chipstaken = str(input("how many chips do you want to take?"))
        if chipstaken. isnumeric()== True: 
            print("thank you for playing")