Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
elementary =
1.
Œ”
2.
§
3.
‘f
4.
ŒÌ
ƒŒƒxƒ‹5.
•ÏX
SDAL“‡‰pŒêŠwZ