User Logins

command = input()
name_dict = {}
counter = 0

while not command == 'login':
    data = [item for item in command.split(" -> ")]
    name_dict[data[0]] = data[1]
    command = input()

command=input()

while not command == "end":
    #data_2 = [item for item in command.split(" -> ")]
    key, value = command.split(" -> ")
    if key in name_dict:
        if value == name_dict[key]:
            print(f"{key}: logged in successfully")
        else:
            print(f"{key}: login failed")
            counter +=1
    else:
        print(f"{key}: login failed")
        counter += 1
    command = input()

print(f"unsuccessful login attempts: {counter}")