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In a parallel universe, you've forgotten the pin code of your credit card. Though fortunately you remember the characteristics of your pin code. Which are-

-It is a 4 digit numerical -The first digit is 1/2 of the 4th digit. -The second and the third digits are the same. -The first 2 digits combined are 1/2 of the last 2 digits.

Example for further clearance-

1224 We see that the 2nd and the 3rd conditions are fulfilled as the 2nd and the 3rd digits are equal and the first 2 digits combined are 1/2 of the last 2 digits combined (12=1/2(24)), though as the first condition is not fulfilled this answer is incorrect.

0000 Sadly this answer, despite of fulfilling all the conditions is wrong, as 0000 isn't considered a 4 digit number.

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