B"You are given an even integer n and an integer k . Your task is to construct a matrix of size n x n consisting of numbers 0 and 1 in such a way that the following conditions are true, or report that it is impossible: Each test consists of multiple test cases. The first line contains a single integer t ( 1 <= q t <= q 130 ) -- the number of test cases. The description of the test cases follows. Each test case is described by a single line, which contains two integers n and k ( 2 <= q n <= q 1000 , n is even, 0 <= q k <= q n^2 ). It is guaranteed that the sum of n over all test cases does not exceed 2000 . For each test case, output texttt{Yes} if it's possible to construct a matrix that satisfies all of the problem's conditions, and texttt{No} otherwise. If it is possible to construct a matrix, the i -th of the next n lines should contain n integers representing the elements in the i -th row of the matrix. In the first example, all conditions are satisfied: In the third example, it can be shown that it's impossible to find a matrix satisfying all the problem's conditions. "...