The Mars rover is programmed to drive around Mars. Its programming is very simple. The commands are the following:
- s drive in a straight line
- r turn right
- l turn left
- S take a sample
Note that the Mars rover always land at the X and starts by facing east.
The Mars rover can send a 2D string representation of its path back to Mission Control. The following character are used with the following meanings:
- X where the Mars rover landed
- * current position of the Mars rover
- - path in the west-east direction
- | path in the north-south direction
- + a place where the Mars rover turned or a crossroad
- S a place where a sample was taken
Your goal is to implement the MarsRover class to make all tests pass.
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