There are 5 shapes on a 8x8 grid. Which shape is closest to the orange 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: orange rectangle at (2, 2)
Distance from target shape to cyan square at (6, 2): 4
Distance from target shape to pink trapezoid at (4, 2): 2
Distance from target shape to green right_triangle at (7, 5): 8
Distance from target shape to gray trapezoid at (4, 3): 3
Closest shape is the pink trapezoid at (4, 2) with distance 2</think>

<answer>(4, 2)</answer>