Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
difficult =
1.
‘¶
2.
”F
3.
“ï
4.
Ž¥
ƒŒƒxƒ‹6.
•ÏX
SDAL“‡‰pŒêŠwZ