There are 4 shapes on a 10x10 grid. Which shape is closest to the red trapezoid in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: red trapezoid at (1, 4)
Distance from target shape to purple square at (8, 3): 8
Distance from target shape to cyan right_triangle at (9, 9): 13
Distance from target shape to pink right_triangle at (2, 3): 2
Closest shape is the pink right_triangle at (2, 3) with distance 2</think>

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