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

ƒŒƒxƒ‹6. •ÏX
SDAL“‡‰pŒêŠwZ