There are 3 shapes on a 4x4 grid. Which shape is closest to the brown trapezoid in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: brown trapezoid at (2, 2)
Distance from target shape to purple right_triangle at (1, 0): 3
Distance from target shape to gray right_triangle at (0, 1): 3
Closest shape is the purple right_triangle at (1, 0) with distance 3</think>

<answer>(1, 0)</answer>