Swapping Adjacent Pairs

Swap Red and Green

The relative position of the Red

and blue areas has not changed.

No inversions between the red key

and the blue area have been removed.

The same is true for the red key and

the orange area. The same analysis can

be done for the green key.

The only inversion

that could be removed

is the (possible) one

between the red and

green keys.

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