There are 3 shapes on a 10x10 grid. Which shape is closest to the gray rectangle 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 rectangle at (2, 4)
Distance from target shape to cyan square at (1, 0): 5
Distance from target shape to green trapezoid at (5, 1): 6
Closest shape is the cyan square at (1, 0) with distance 5</think>

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