y = array2d(1..2, 1..2, [1, 1, 1, 1]);
----------
y = array2d(1..2, 1..2, [1, 1, 1, 2]);
----------
y = array2d(1..2, 1..2, [1, 1, 2, 2]);
----------
y = array2d(1..2, 1..2, [1, 2, 1, 2]);
----------
y = array2d(1..2, 1..2, [1, 2, 2, 1]);
----------
y = array2d(1..2, 1..2, [1, 2, 2, 2]);
----------
y = array2d(1..2, 1..2, [2, 2, 2, 2]);
----------
==========