garden.cpp

#include<iostream>
using namespace std;
int main ()
{
    int w1, h1, w2, h2;
    cin >> w1 >> h1 >> w2 >> h2;

    if (w2 < w1) {
        cout << ((h1 + h2) * 2) + (w2 + (w1 - w2) + w1) + 4;
    } else {
        cout << ((h1 + h2) * 2) + (w2 + (w2 - w1) + w1) + 4;
    }



    return 0;
}