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