There are 2 shapes on a 7x7 grid. Which shape is closest to the orange right_triangle 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 right_triangle at (4, 4)
Distance from target shape to blue square at (6, 5): 3
Closest shape is the blue square at (6, 5) with distance 3</think>

<answer>(6, 5)</answer>