There are 2 shapes on a 6x6 grid. Which shape is closest to the cyan right_triangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: cyan right_triangle at (2, 0)
Distance from target shape to brown rectangle at (5, 1): 4
Closest shape is the brown rectangle at (5, 1) with distance 4</think>

<answer>(5, 1)</answer>