There are 6 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 (0, 0)
Distance from target shape to brown rectangle at (2, 2): 4
Distance from target shape to blue right_triangle at (2, 3): 5
Distance from target shape to cyan square at (1, 1): 2
Distance from target shape to pink square at (1, 3): 4
Distance from target shape to orange trapezoid at (1, 0): 1
Closest shape is the orange trapezoid at (1, 0) with distance 1</think>

<answer>(1, 0)</answer>