Probably, no one will be surprised by the fact that Russians usually remember buygoodcctheir card passwords. It’s just a pity that memory is a thing that likes to fail at the most inopportune moments.
In order not to worry about this, it will be better to write the PIN code (in the daily diary at home or in the address book on your mobile), but not in simple numbers, but using some kind of cipherbestccdumps. The password itself must be set as memorable as possible. Alternatively, you can link it to a date, as long as it is not the cardholder’s birthday.