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

ƒŒƒxƒ‹6. •ÏX
SDAL“‡‰pŒêŠwZ