C hicken and rabbit s

<div> Chicken and rabbits are in a same cage. As we all know, chicken has two legs but rabbit has four. Now </div> <div> we know the number of legs in the cage is A, please tell me how many animals may in the cage at least </div> <div> and at most. </div>

<div> The first line of the input contains the number of test cases in the file. Each test case that follows </div> <div> consists of one lines. each case contains only one integer numbers A specifying the total legs in the </div> <div> cage . </div>

<p> For each test case, print a line contains the answer </p>