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