There are 2 shapes on a 6x6 grid. Which shape is closest to the gray 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: gray right_triangle at (1, 0)
Distance from target shape to brown square at (2, 0): 1
Closest shape is the brown square at (2, 0) with distance 1</think>

<answer>(2, 0)</answer>