#include<iostream>

using namespace std;

int main()

{

int i, a, b, c, d, f[4];

for(i = 0; i < 4; i++) cin >> f[i];

a = f[0] + f[1] + f[2] + f[3];

a = a / f[0];

b = f[0] + f[2] + f[3];

b = b / a;

c = (b * f[1] + a) / f[2];

d = f[(b / c ) % 4];

if(f[(a + b + c + d) % 4] > f[2])

cout << a + b<< endl;

else cout << c + d << endl;

return 0;

}

 输入：9 19 29 39

输出：_______________