1. Create an account
2. Log into account
0. Exit
>1

Your card has been created
Your card number:
4000009455296122
Your card PIN:
1961

1. Create an account
2. Log into account
0. Exit
>1

Your card has been created
Your card number:
4000003305160034
Your card PIN:
5639

1. Create an account
2. Log into account
0. Exit
>2

Enter your card number:
>4000009455296122
Enter your PIN:
>1961

You have successfully logged in!

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>2

Enter income:
>10000
Income was added!

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>1

Balance: 10000

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>3

Transfer
Enter card number:
>4000003305160035
Probably you made a mistake in the card number. Please try again!

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>3

Transfer
Enter card number:
>4000003305061034
Such a card does not exist.

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>3

Transfer
Enter card number:
>4000003305160034
Enter how much money you want to transfer:
>15000
Not enough money!

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>3

Transfer
Enter card number:
>4000003305160034
Enter how much money you want to transfer:
>5000
Success!

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>1

Balance: 5000

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit

>0
Bye!

1. Create an account
2. Log into account
0. Exit
>1

Your card has been created
Your card number:
4000007916053702
Your card PIN:
6263

1. Create an account
2. Log into account
0. Exit
>2

Enter your card number:
>4000007916053702
Enter your PIN:
>6263

You have successfully logged in!

1. Balance
2. Add income
3. Do transfer
4. Close account
5. Log out
0. Exit
>4

The account has been closed!

1. Create an account
2. Log into account
0. Exit
>2

Enter your card number:
>4000007916053702
Enter your PIN:
>6263

Wrong card number or PIN!

1. Create an account
2. Log into account
0. Exit
>0

Bye!