SORTING WATER

Well, friends, would you like to stretch your brains? In this puzzle there is something from children's (although not so children's!) tag, well, or abacus. In this case, the goal of the game is to pour water into test tubes so that each vessel has only one color of liquid.

Initially, the water in the test tubes lies in layers, which for some reason do not mix with each other. Although it is possible that they do not have water at all, but, say, sand. Do you remember souvenirs from Turkey or Egypt, when layers of colorful sand are poured into small bottles, creating beautiful pictures?.. It's more like that here.

So, think about how and in what order to transfer the liquid from vessel to vessel in order to solve the problem in the least number of moves. However, moves are not considered here, so the optimal flow rate is not so important. The result is important: each test tube should contain only one color of water. The levels gradually become more complex. Get started. Have a good game!