modify the lucsorter class (specifically the evenodd method) to reorder an array to have all the even elements followed by the odd elements. this will be similar to the selection sort algorithm (in this case, every odd element k found from left to right should be swapped with the first even number at the right of k). the even elements should be in the same order as they are in the input array, while the odd numbers are not required to be in the same order as in the input.