#include <iostream>
#include <algorithm>
using namespace std;
int main()
{
int a[6], b[6];
int d[6] = {1, 1, 2, 2, 2, 8};
int m = 1000;
for(int i = 0; i < 6; i++) {
cin >> a[i];
a[i] /= d[i];
m = min(m, a[i]);
}
for(int i = 0; i < 6; i++) {
cin >> b[i];
b[i] /= d[i];
m = min(m, b[i]);
}
cout << m << endl;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8YWxnb3JpdGhtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwppbnQgbWFpbigpCnsKICAgIGludCBhWzZdLCBiWzZdOwogICAgaW50IGRbNl0gPSB7MSwgMSwgMiwgMiwgMiwgOH07CiAgICBpbnQgbSA9IDEwMDA7Cglmb3IoaW50IGkgPSAwOyBpIDwgNjsgaSsrKSB7CgkgICAgY2luID4+IGFbaV07CgkgICAgYVtpXSAvPSBkW2ldOwoJICAgIG0gPSBtaW4obSwgYVtpXSk7Cgl9Cglmb3IoaW50IGkgPSAwOyBpIDwgNjsgaSsrKSB7CgkgICAgY2luID4+IGJbaV07CgkgICAgYltpXSAvPSBkW2ldOwoJICAgIG0gPSBtaW4obSwgYltpXSk7Cgl9Cgljb3V0IDw8IG0gPDwgZW5kbDsKCXJldHVybiAwOwp9