Palandoken Number

[faruk61]

A palindrome number containing 4 unique (unique, different) numbers is called the Palandöken Number. As it is known, the number read from the left and the right, in other words, equal to the opposite, is the palindrome number. The number 121 is not a Palandoken Number because there are 2 unique numbers used in this number. (1 and 2) On the other hand, the number 318121813 is a Palandoken Number because there are 4 unique numbers used in this number. (1, 2, 3 and 8)

Bool function ????

[salem c]

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