10 lines
175 B
C++
10 lines
175 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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typedef long long LL;
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int main() {
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LL x, y;
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cin >> x >> y;
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cout << 2 * (y + 3 * x) << endl;
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return 0;
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}
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