There are 4 shapes on a 4x4 grid. Which shape is closest to the gray rectangle 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 rectangle at (2, 3)
Distance from target shape to cyan square at (2, 2): 1
Distance from target shape to orange right_triangle at (1, 2): 2
Distance from target shape to brown trapezoid at (0, 0): 5
Closest shape is the cyan square at (2, 2) with distance 1</think>

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