/// <summary>
/// Moves the rover according to a given set of instructions.
/// </summary>
/// <param name="instructions">A string containing the chars 'L', 'M', and 'R'.</param>
/// <returns>An <see cref="IEnumerable{string}"/> containing the formatted "X Y Z" current position.</returns>
public string ExecuteInstructions(string instructions)
{
foreach (var instruction in Decoder.CreateMovementInstructions(instructions))
{
Controller.Move(instruction);
}
return(GetPosition());
}