#include < iostream >
using   namespace  std;

int  l[ 3 ],c[ 3 ];
int  n,s,t;
int  a[ 110 ];
int  f[ 110 ];
int  make( int  li){
     for ( int  i = 0 ;i < 3 ; ++ i)
         if (li <= l[i])
             return  c[i];
     return   - 1 ;
}
int  main()
{
     for ( int  i = 0 ;i < 3 ; ++ i)
        cin >> l[i];
     for ( int  i = 0 ;i < 3 ; ++ i)
        cin >> c[i];
    cin >> n >> s >> t;
     if (s > t){
         int  tmp = s;
        s = t;t = tmp;
    }
    a[ 1 ] = 0 ;
     for ( int  i = 2 ;i <= n; ++ i)
        cin >> a[i];
     for ( int  i = 1 ;i <= s; ++ i) 
        f[i] = 0 ;
     for ( int  i = s + 1 ;i <= t; ++ i){
        f[i] = 0x7FFFFFFF ;
         for ( int  j = i - 1 ;j >= s; -- j){
             int  k = make(a[i] - a[j]);
             if (k ==- 1 )  break ;
             if (f[i] > f[j] + k)
                f[i] = f[j] + k;
        }
    }
    cout << f[t] << endl;
     return   0 ;
}