9 lines
166 B
C++
9 lines
166 B
C++
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#include<iostream>
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using namespace std;
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int main(){
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int n,a[8]={14,1,2,4,7,8,11,13};
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cin>>n;
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int ans=(n-1)/8*15;
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ans+=a[n%8];
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cout<<ans;
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}
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