23 lines
285 B
C++
23 lines
285 B
C++
#include<cstdio>
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using namespace std;
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int sum(int letter)
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{
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int ans=letter/70;
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if(letter%70!=0) ans++;
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return ans;
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}
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int main()
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{
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int n;
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scanf("%d",&n);
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int add=0,x;
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for(int i=0;i<n;i++)
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{
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scanf("%d",&x);
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add+=sum(x);
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}
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printf("%.1lf\n",(double)add/10.0);
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return 0;
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}
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