Coordinates of Neighbors

For a cell located at coordinates (x, y) within a table of dimensions M×N, determine and output the coordinates of its neighboring cells. Neighboring cells are defined as those that share a side with the given cell.

Input

You are provided with natural numbers M, N, x, y (1 ≤ x ≤ M ≤ 10^9, 1 ≤ y ≤ N ≤ 10^9).

Output

Print the coordinate pairs of the neighboring cells of the specified cell, in any order.

Examples