There are 6 shapes on a 7x7 grid. Which shape is closest to the brown square 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 square at (2, 2)
Distance from target shape to orange trapezoid at (6, 5): 7
Distance from target shape to yellow right_triangle at (3, 4): 3
Distance from target shape to purple trapezoid at (4, 5): 5
Distance from target shape to gray rectangle at (1, 5): 4
Distance from target shape to green square at (0, 5): 5
Closest shape is the yellow right_triangle at (3, 4) with distance 3</think>

<answer>(3, 4)</answer>