Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
cooperation =
1. •Ï
2. q
3. –q
4. ‹¦

ƒŒƒxƒ‹4. •ÏX
SDAL“‡‰pŒêŠwZ