Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
one-sided =
1. —~
2. •Ð
3. — 
4. ‹Î

ƒŒƒxƒ‹6. •ÏX
SDAL“‡‰pŒêŠwZ