Add Two 2D Vectors

Given two 2D vectors \(\mathbf{v_1} = (x_1, y_1)\) and \(\mathbf{v_2} = (x_2, y_2)\), your task is to compute their sum \(\mathbf{v_1} + \mathbf{v_2} = (x_1+x_2, \; y_1+y_2)\).

The input will be provided via stdin and the result should be printed to stdout as two space-separated integers representing the resulting vector.

inputFormat

The input consists of a single line containing four space-separated integers:

• x1 and y1, the coordinates of the first vector
• x2 and y2, the coordinates of the second vector

You can assume that all numbers are integers.

outputFormat

Output the sum of the two vectors as two space-separated integers representing the x and y coordinates of the resulting vector.

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