Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
interval =
1. Žã
2. —j
3. –œ
4. ŠÔ

ƒŒƒxƒ‹2. •ÏX
SDAL“‡‰pŒêŠwZ