Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
tree =
1. ’Ž
2. –Ø
3. X
4. Ô

ƒŒƒxƒ‹1. •ÏX
SDAL“‡‰pŒêŠwZ