746A - Compote

#include <iostream>
#include <set>
#include <cmath>
using namespace std;
int mini(int a,int b,int c){
    if (a<=b && a<=c)
        return 1;
    if (b<=a && b<=c)
        return 2;
    return 3;

}
int main() {
    int a,b,c,a2,b2,c2;
    cin>>a>>b>>c;
    if (a<1 || b<2 || c<4){
        cout<<0<<endl;
        return 0;
    }
    a2=a;
    b2=ceil(b/2);
    c2=ceil(c/4);
    int min=mini(a2,b2,c2);
    /*cout<<"a1: "<<a2<<endl;
    cout<<"b1: "<<b2<<endl;
    cout<<"c1: "<<c2<<endl;
    cout<<"min: "<<min<<endl;
    */
    if (min==1)
        cout<<(a2+a2*2+a2*4)<<endl;
    else if (min==2)
        cout<<(b2+b2*2+b2*4)<<endl;
    else
        cout<<(c2+c2*2+c2*4)<<endl;

    return 0;
}