n1=input('enter password: ')
n2=input('repeat password: ')
if n1==n2:
    print('the password is used!')
else:
    print('passwords do not match')

 while True:
    n1 = input('enter password: ')
    n2 = input('repeat password: ')
    if n1 == n2:
        print('the password is used!')
        break
    else:
        print('passwords do not match')

 from cx_Freeze import setup, Executable
setup(
    name = "21",
    version = "0.1",
    description = "Blackjack",
    executables = [Executable("21.py")]
)