Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
boundary =
1. ‰ð
2. ‰¶
3. ŒÌ
4. ‹«

ƒŒƒxƒ‹5. •ÏX
SDAL“‡‰pŒêŠwZ