trys = 5

acc = input("Would you like to create an account? (Y/N): ")

if acc == "Y":
    print("Enter a username and password")
    username = input("Username: ")
    password = input("Password: ")
    
    print("Sign in:")

while trys > 0:
    user = input("Username: ")
    key = input("Password: ")

    if user == username and key == password:
        print("Welcome")
    else:
        print("Password incorrect!")
        loop = input("Would you like to try again? (Y/N): ")
        if loop == "Y" and trys > 0:
            trys = trys - 1
            print(trys, "trys left")
                  
        elif acc == "N":
            print("Thank you for visiting.")
        else:
            print("Invalid input.")