Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
guard against =
1. Œƒ
2. Œx
3. •±
4. ò

ƒŒƒxƒ‹6. •ÏX
SDAL“‡‰pŒêŠwZ