Find the number from the range [a, b] which has the maximum product of the digits.
The first line contains two positive integers a and b (1 ≤ a ≤ b ≤ 1018): the left and the right ends of the range.
Print the number with the maximum product of the digits from the range [a, b]. If there are several possible answers, print any one of them.
1 10
9
51 62
59