There are 2 shapes on a 10x10 grid. Which shape is closest to the gray 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: gray right_triangle at (9, 7)
Distance from target shape to cyan trapezoid at (1, 4): 11
Closest shape is the cyan trapezoid at (1, 4) with distance 11</think>

<answer>(1, 4)</answer>