A line of Russian soldiers stands in front of a huge rectangular hole in the ground.

Sergant commands: ``Private Ivanov!''

``Yes, sir.''

``Stand like this:''

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The soldier jumps into the hole.

The sergant commands again: ``Private Pyetrov!!''

``Yes, sir!''

``Stand like this:''

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`` Jump!''

The soldier jumps and falls into the hole.

The sergant commands again: `` Private Sidorov!!''

`` Yes, sir!''

`` Stand like this:''

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At this point a car with a colonel arrives to that place. Colonel, very angry, comes up to the sergant and tells him: ``Comrad sergant, how many times do I have to tell you: STOP PLAYING TETRIS WITH THE SOLDIERS!!!!!!!!!''