Submission #1174759

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Source Code Expand

#include<iostream>
#include<string>
#include<cmath>
#include<queue>
#include<map>
#include<set>
#include<list>
#include<iomanip>
#include<vector>
#include<functional>
#include<algorithm>
#include<cstdio>
#include<unordered_map>
using namespace std;
typedef long long ll;
int main() {
	int a, b, c;
	cin >> a >> b >> c;
	cout << 2 * a*b + 2 * a*c + 2 * b*c << endl;
}

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