+---+---+---+---+ | A | B | C | D | +---+---+---+---+ | | E | F | G | +---+---+---+---+ | H | I | J | K | +---+---+---+---+You may move a block with a letter on it to the blank space by sliding it there.

Determine the minimum number of moves it takes to put K where H is, J where I is, I where J is, and H where K is at the same time. (In other words, changing the configuration in row-3 from HIJK to KJIH.)

*: The other pieces don't need to be in their original spots.*

__Note__