Codeforces Round #386 (Div. 2)/A. Compote

Problem:http://codeforces.com/contest/746/problem/A
Code:
#include<bits/stdc++.h>
using namespace std;
int main()
{
    long long a,b,c,tmp,s,bb,cc;
    while(cin>>a>>b>>c)
    {
        bb=b/2;
        cc=c/4;
        tmp=a;
        if(tmp>cc)
            tmp=cc;
        if(tmp>bb)
            tmp=bb;
            //cout<<"tmp="<<tmp<<" "<<a<<" "<<bb<<" "<<cc<<endl;
            s=tmp*1+tmp*2+tmp*4;
            cout<<s<<endl;
    }
    return 0;
}