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Square cross-shaped circle

The third day I can not decide who may be puzzled all ...
The question is - to draw the following figure without taking hands and carrying on the same line several times.





Source:
Pictures
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Keyboard with their hands
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...
ZX Spectrum - return of a legend
...
10 curious paradox on which
...
The most unusual places on the planet
...
Keyboard with their hands
...
Trams rattle so Why?
...
A trip to the Czech Republic, Germany and Austria
...
Eurotrip on a motorcycle or the seven seas
...
Caste. India.
...
Chinese ID-card. From shabby pieces of paper to card "all in one"
...
How to map the planet conquered
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