Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
perform =
1.
â
2.
‰‰
3.
÷
4.
Šµ
ƒŒƒxƒ‹5.
•ÏX
SDAL“‡‰pŒêŠwZ