There are 4 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 (3, 2)
Distance from target shape to yellow trapezoid at (6, 3): 4
Distance from target shape to gray rectangle at (0, 6): 7
Distance from target shape to pink square at (1, 1): 3
Closest shape is the pink square at (1, 1) with distance 3</think>

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