Reverse and Compare

Given two positive decimal integers \(a\) and \(b\), you are required to reverse these numbers and output the larger one. The reversal (\(\texttt{reverse}(n)\)) of a number is achieved by reading its digits from right to left. For example, \(\texttt{reverse}(123) = 321\) and \(\texttt{reverse}(100) = 1\) (leading zeros are dropped).

Note: The definition of "reverse" in this problem is as described above.

inputFormat

The input consists of a single line containing two positive integers \(a\) and \(b\) separated by a space.

outputFormat

Output the larger number after reversing \(a\) and \(b\).

sample

123 321

321