Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
³‰ðI
guard against =
1. “W
2. Ž‹
3. Œx
4. –Y

ƒŒƒxƒ‹6. •ÏX
SDAL“‡‰pŒêŠwZ