There are 4 shapes on a 6x6 grid. Which shape is closest to the blue 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: blue trapezoid at (1, 1)
Distance from target shape to red square at (5, 4): 7
Distance from target shape to pink rectangle at (3, 2): 3
Distance from target shape to cyan trapezoid at (1, 0): 1
Closest shape is the cyan trapezoid at (1, 0) with distance 1</think>

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