Given a non-negative number N in the form of string. The task is to apply at most one swap operation on the number N so that the resultant is just previous possible number.
Note: Leading zeros are not allowed.
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case contains a number N as input.
For each test case, print the just previous possible number you can have in one swap. if it is not possible to make previous number then print "-1".
2<=|Number length |<=105
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