There are 4 shapes on a 8x8 grid. Which shape is closest to the pink 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: pink square at (4, 5)
Distance from target shape to gray right_triangle at (2, 4): 3
Distance from target shape to cyan square at (7, 5): 3
Distance from target shape to orange trapezoid at (1, 6): 4
Closest shape is the gray right_triangle at (2, 4) with distance 3</think>

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