There are 5 shapes on a 6x6 grid. Which shape is closest to the gray square 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 square at (4, 3)
Distance from target shape to yellow right_triangle at (0, 5): 6
Distance from target shape to blue square at (3, 3): 1
Distance from target shape to orange trapezoid at (4, 2): 1
Distance from target shape to cyan trapezoid at (3, 1): 3
Closest shape is the blue square at (3, 3) with distance 1</think>

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