There are 3 shapes on a 7x7 grid. Which shape is closest to the blue 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: blue right_triangle at (3, 5)
Distance from target shape to cyan right_triangle at (2, 6): 2
Distance from target shape to gray trapezoid at (0, 2): 6
Closest shape is the cyan right_triangle at (2, 6) with distance 2</think>

<answer>(2, 6)</answer>