Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
boundary =
1. ã
2. ‰ê
3. Γ
4. ‹«

ƒŒƒxƒ‹5. •ÏX
SDAL“‡‰pŒêŠwZ