There are 2 shapes on a 4x4 grid. Which shape is closest to the gray 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: gray trapezoid at (3, 3)
Distance from target shape to cyan square at (1, 2): 3
Closest shape is the cyan square at (1, 2) with distance 3</think>

<answer>(1, 2)</answer>