There are 6 shapes on a 7x7 grid. Which shape is closest to the cyan 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: cyan right_triangle at (0, 0)
Distance from target shape to brown right_triangle at (4, 2): 6
Distance from target shape to red rectangle at (4, 5): 9
Distance from target shape to yellow trapezoid at (0, 4): 4
Distance from target shape to blue square at (3, 1): 4
Distance from target shape to green trapezoid at (6, 4): 10
Closest shape is the yellow trapezoid at (0, 4) with distance 4</think>

<answer>(0, 4)</answer>