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#include<iostream>
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using namespace std;
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//<2F>Ľ<EFBFBD>, ȥ<><C8A5>ż<EFBFBD><C5BC><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
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bool isPrime(int n)
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{
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if(n < 2) return false;
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if(n == 2) return true;
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if(n % 2 == 0) return false;
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for(int i = 3; i < n; i += 2)
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if(n%i == 0) return false;
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return true;
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}
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//ʱ<>临<EFBFBD>Ӷ<EFBFBD>O(n/2), <20>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>.
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int main()
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{
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for(int i=0;i<100;i++)
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{
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if(isPrime(i))
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{
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cout<<i<<endl;
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}
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}
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return 0;
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}
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