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 the next higher number.
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 next higher number possible. if it is not possible to make next higher number then print "-1".
2<=|Number length |<=104