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― Configuration code: RRmUmLvDmDRvUm
- Start from
- Rotate 90 degrees clockwise the back flap against the front flap and change their hinging side
- Squeze the cube laterally, by reverting from valley to mountain the folding corresponding to
the edge of the back of the cube orthogonal to the two closed flaps into a 3D shape
- Turn a flap out 90 degrees into the final shape
