There are 2 shapes on a 10x10 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 (5, 4)
Distance from target shape to orange right_triangle at (1, 1): 7
Closest shape is the orange right_triangle at (1, 1) with distance 7</think>

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