Create an ordered 2D array (matrix). A matrix is ordered if its (0, 0) element is 1, its (0, 1) element is 2, and so on. Your function needs to create an a × b matrix. a is the first argument and b is the second.

Examples

orderedMatrix(5, 5) ➞ {
  {1, 2, 3, 4, 5},
  {6, 7, 8, 9, 10},
  {11, 12, 13, 14, 15},
  {16, 17, 18, 19, 20},
  {21, 22, 23, 24, 25}
}

orderedMatrix(1, 1) ➞ {{1}}

orderedMatrix(1, 5) ➞ {{1, 2, 3, 4, 5}}

Notes

• a is the height of the matrix (y coordinate), and b is the width (x coordinate).
• a and b will always be positive, and the matrix will always be square shaped (in each row are the same amount of columns).
• a and b are integers.