Robot Steps

Q : A robot moves in a plane starting from the original point (0,0). The robot can move toward UP, DOWN, LEFT and RIGHT with a given steps. The trace of robot movement is shown as the following:

commands = [ "UP 7", "LEFT 1", "DOWN 2", "RIGHT 5", "RIGHT 2"]

Please write a program to compute the distance from current position after a sequence of movement and original point. If the distance is a float, then just print the nearest integer.



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Example:
commands = ["UP 5", "DOWN 3", "LEFT 3", "RIGHT 2"]
Answer is : 2