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• Start from L-1 of [Nourse]
• turn right 180 degrees the upper three tiles (second floor) on the western stacks
• turn down (valley fold) 180 degrees the two north tiles
• open in 3D in the final shape with the following hinging
  • North-west stack: west side
  • North-east stack: north side
  • South-east stack: south side between first and second floor, west side between second and third floor
  • Valley fold 90 degrees between south and north tiles (both west and east)