??????OL??????????÷???

??????????????????????????????????????40????60??????;

40???????????+10% 2???(10???)

????+20% 4???(20???)

????+30% 8???(40???)

????+40% 16???(80???)

????+50% 24???(120???)

????+60% 32???(160???)

????+70% 40???(200???)

????+80% 50???(250???)

????+90% 60???(300???)

60???????????+10% 8??? (40???)

????+20% 16??? (80???)

????+30% 32???(160???)

????+40% 64???(320???)

????+50% 96???(480???)

????+60% 128???(640???)

????+70% 160???(800???)

????+80% 200???(1000???)

????+90% 240???(1200???)

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