There are 6 shapes on a 10x10 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, 3)
Distance from target shape to orange rectangle at (3, 2): 1
Distance from target shape to yellow rectangle at (3, 5): 2
Distance from target shape to cyan trapezoid at (2, 5): 3
Distance from target shape to blue square at (1, 3): 2
Distance from target shape to red rectangle at (6, 1): 5
Closest shape is the orange rectangle at (3, 2) with distance 1</think>

<answer>(3, 2)</answer>