The (1234567890A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z) system that creates Bitcoin is reduced to (rt)

With Chinese, Japanese, Latin Alphabet, the numbers and a thousand characters number series, only

    (rr) Bitcoin address
    (tt) Bitcoin address
    (rt) Bitcoin address
    (tr) Bitcoin address

       addresses can be created.

In this case when you create a Bitcoin address with a character series(6789012345678901友達彼女雪男),(Llisp),(1234542152695) of  any length, a collision occurs.

Let's consider Bitcoin (tt) as a cold address, in this case someone else can create the cold address.