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

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