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