Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
boundary =
1. •œ
2. ‰c
3. ‹«
4. Ž¯

ƒŒƒxƒ‹5. •ÏX
SDAL“‡‰pŒêŠwZ