#include <bits/stdc++.h>
using namespace std;
int main() {
  int p[] = {500, 1000, 1500, 2000, 2500};
  int m[10];
  int w[10];
  for (int i = 0; i < 5; i++) {
    cin >> m[i];
  }
  for (int i = 0; i < 5; i++) {
    cin >> w[i];
  }
  int hs, hu;
  cin >> hs >> hu;
  int sum = 0;
  for (int i = 0; i < 5; i++) {
    sum += max(0.3 * p[i], round((1 - m[i] / 250.0) * p[i]) - 50 * w[i]);
  }
  sum += hs * 100 - hu * 50;
  cout << sum << endl;
  return 0;
}
