There are 6 shapes on a 10x10 grid. Which shape is closest to the orange 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: orange square at (1, 6)
Distance from target shape to green square at (7, 8): 8
Distance from target shape to cyan trapezoid at (5, 0): 10
Distance from target shape to brown rectangle at (9, 4): 10
Distance from target shape to yellow trapezoid at (4, 0): 9
Distance from target shape to blue square at (7, 2): 10
Closest shape is the green square at (7, 8) with distance 8</think>

<answer>(7, 8)</answer>