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

ƒŒƒxƒ‹6. •ύX
SDAL“‡‰pŒêŠwZ