Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
elementary =
1. ŽÓ
2. ‘f
3.
4.

ƒŒƒxƒ‹5. •ÏX
SDAL“‡‰pŒêŠwZ