There are 4 shapes on a 7x7 grid. Which shape is closest to the red trapezoid in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: red trapezoid at (0, 1)
Distance from target shape to cyan trapezoid at (5, 4): 8
Distance from target shape to gray right_triangle at (1, 4): 4
Distance from target shape to purple rectangle at (6, 6): 11
Closest shape is the gray right_triangle at (1, 4) with distance 4</think>

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