#include <cstdio>
#include <algorithm>
#include <stack>
#include <queue>
#include <deque>
#include <vector>
#include <string>
#include <string.h>
#include <cstdlib>
#include <ctime>
#include <cmath>
#include <map>
#include <set>
#include <iostream>
#include <sstream>
#include <cctype>
#define fi first
#define se second
#define rep(i,n) for(int i = 0; i < n; ++i)
#define rrep(i,n) for(int i = 1; i <= n; ++i)
#define drep(i,n) for(int i = n-1; i >= 0; --i)
#define gep(i,g,j) for(int i = g.head[j]; i != -1; i = g.e[i].next)
#define each(it,c) for(__typeof((c).begin()) it=(c).begin();it!=(c).end();it++)
#define rng(a) a.begin(),a.end()
#define maxs(x,y) x = max(x,y)
#define mins(x,y) x = min(x,y)
#define pb push_back
#define sz(x) (int)(x).size()
#define pcnt __builtin_popcount
#define snuke srand((unsigned)clock()+(unsigned)time(NULL));
inline int in() { int x; scanf("%d",&x); return x;}
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
typedef vector<int> vi;

const int MX = 100005, INF = 1000010000;
const ll LINF = 1000000000000000000ll;
const double eps = 1e-10;
const int di[] = {-1,0,1,0}, dj[] = {0,-1,0,1}; //^<v>

map<vi,int> dp;
int d[2];
vi a, b[2];

int sol(vi a) {
  if (dp.count(a)) return dp[a];
  int res = 1;
  rep(k,2) {
    int i = min(a[0],d[k]/1000);
    int r = d[k]-1000*i;
    int j = min(a[1],r/100);
    r -= 100*j;
    if (r > a[2]) continue;
    vi x = a;
    x[0] -= i; x[1] -= j; x[2] -= r;
    rep(l,3) x[l] += b[k][l];
    res = max(res,sol(x)+1);
  }
  return dp[a] = res;
}

int main(){
  a = b[0] = b[1] = vi(3);
  rep(i,3) cin >> a[i];
  cin >> d[0];
  rep(i,3) cin >> b[0][i];
  cin >> d[1];
  rep(i,3) cin >> b[1][i];
  cout << sol(a)-1 << endl;
  return 0;
}