There are 5 shapes on a 8x8 grid. Which shape is closest to the pink 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: pink rectangle at (1, 4)
Distance from target shape to orange square at (3, 2): 4
Distance from target shape to cyan square at (4, 0): 7
Distance from target shape to blue trapezoid at (2, 4): 1
Distance from target shape to brown rectangle at (0, 4): 1
Closest shape is the blue trapezoid at (2, 4) with distance 1</think>

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