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Symmetries:
Unsymmetric, chiral
Four configurations for this shape
(click on the image for building instructions):
1: 
[chiral, two flaps, twin: 2, code: RRUUmLvRmRUm]
2: 
[chiral, two flaps, twin: 1, code: RRUUvLmRvRUv]
3: 
[chiral, two flaps, twin: 4, code: RRUmRRmLvUUv]
4: 
[chiral, two flaps, twin: 3, code: RRUvRRvLmUUm]
