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OI-codes/Luogu/T216906/T216906.cpp

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2021-12-19 08:20:52 +00:00
#include <iostream>
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#include <cmath>
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using std::cin;
using std::cout;
using std::endl;
int t, h, e;
int main() {
cin >> t >> h >> e;
cout << (int)floor(0.2 * t + 0.3 * h + 0.5 * e) << endl;
return 0;
}