There are 2 shapes on a 8x8 grid. Which shape is closest to the yellow 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: yellow right_triangle at (5, 4)
Distance from target shape to cyan right_triangle at (6, 0): 5
Closest shape is the cyan right_triangle at (6, 0) with distance 5</think>

<answer>(6, 0)</answer>