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My dad completed one side of the Rubik's cube this evening in my brother's house.
I then asked him to completed two sides at one time by next week(I can't do it too, of course!!!). HOWEVER, it's a good challenage to my dad. This exercise is really a good brain training to prevent Parkinson’s disease!!
solution
1 comment:
I give a solution for you for reference.
http://www.sendspace.com/file/k28ax0
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