B'We will consider the numbers a and b as adjacent if they differ by exactly one, that is, |a-b|=1 . We will consider cells of a square matrix n x n as adjacent if they have a common side, that is, for cell (r, c) cells (r, c-1) , (r, c+1) , (r-1, c) and (r+1, c) are adjacent to it. For a given number n , construct a square matrix n x n such that: The first line contains one integer t ( 1 <= t <= 100 ). Then t test cases follow. Each test case is characterized by one integer n ( 1 <= n <= 100 ). For each test case, output: The matrix should be outputted as n lines, where each line contains n integers. '...