Digit Duel

Difficulty: 1100 2000 ms 128 MB

implementation

Align A and B by their LAST digits (pad the shorter with leading zeros); build the number taking the larger digit at each position. Print it without leading zeros.

Input: one line with two integers A and B.

Output: the digit-wise maximum.

Constraints:

• 0 ≤ A, B ≤ 10¹⁸

Sample Tests

523 68

568

7 7

7

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