//pakage joney_000[let_me_start]
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.math.*;
/*
 * Author    : [let_me_start]
 * Algorithm : Not Specified
 * Platform  : CodeForces
 *
 */
 
 /*                The Main Class                */
public class A
{   
        public static InputStream inputStream = System.in;
    public static OutputStream outputStream = System.out;
    public static FastReader in = new FastReader(inputStream);;
        public static PrintWriter out = new PrintWriter(outputStream);;
    /*
        Overhead [Additional Temporary Strorage]
    */
    public static int tempints[] = new int[100005];
    public static long templongs[] = new long[100005];
    public static double tempdoubles[] = new double[100005];
    public static char tempchars[] = new char[100005];
    public static long mod = 1000000000+7;
    
    public static void main(String[] args) throws java.lang.Exception{
        //let_me_start 
    /*  BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter out=new BufferedWriter(new OutputStreamWriter(System.out));
      BufferedReader br=new BufferedReader(new FileReader("input.txt"));
        BufferedWriter out=new BufferedWriter(new FileWriter("output.txt"));
    */ 
        // int n = i(); int m = i();
         //int arr[] = is((int)n);
         //String ans = "NO";
         long ans=0;
         double []arr = {500.0 , 1000.0 , 1500.0 , 2000.0 , 2500.0};
         double m[] = new double[6];
         double w[] = new double[6];
         
         for(int i=1;i<=5;i++){
            m[i] = d();
         }

         for(int i=1;i<=5;i++){
            w[i] = d();
         }
         double sc  =0.0D;
         
         for(int i=1;i<=5;i++){
            sc += Math.max(0.3*arr[i-1] , arr[i-1] - (m[i]*arr[i-1]) / 250 - 50*w[i]) ;
         }
         double d = d()*100 - d()*50;   
         ans = (long)(sc + d);  
        out.write(""+ans+"\n");
        out.flush();
        return;
        }    
         
         


//****************************** Utilities ***********************//

 public static boolean isPrime(long n)throws Exception{
  if(n==1)return false;
  if(n<=3)return true;
  if(n%2==0)return false;
  for(int i=2 ;i <= Math.sqrt(n); i++){
   if(n%i==0)return false;
  }
  return true;
 }
 // sieve
 public static int[] primes(int n)throws Exception{       // for(int i=1;i<=arr.length-1;i++)out.write(""+arr[i]+" ");
  boolean arr[] = new boolean[n+1];
  Arrays.fill(arr,true);
  arr[1]=false;
  for(int i=2;i<=Math.sqrt(n);i++){
    if(!arr[i])continue;
    for(int j = 2*i ;j<=n;j+=i){
        arr[i]=false;
    }
  }
  LinkedList<Integer> ll = new LinkedList<Integer>();
  for(int i=1;i<=n;i++){
   if(arr[i])ll.add(i);
  }
  n = ll.size();
  
  int primes[] = new int[n+1];
  for(int i=1;i<=n;i++){
    primes[i]=ll.removeFirst();
  }
  return primes;
 }
 public static long gcd (long a , long b)throws Exception{
  if(b==0)return a;
  return gcd(b , a%b);
 }
 public static long lcm (long a , long b)throws Exception{
  if(a==0||b==0)return 0;
  return (a*b)/gcd(a,b);
 }
 public static long mulmod(long a , long b ,long mod)throws Exception{
   if(a==0||b==0)return 0;
   if(b==1)return a;
   long ans = mulmod(a,b/2,mod);
   ans = (ans*2)% mod;
   if(b%2==1)ans = (a + ans)% mod;
   return ans;
 }
 public static long pow(long a , long b ,long mod)throws Exception{
   if(b==0)return 1;
   if(b==1)return a;
   long ans = pow(a,b/2,mod);
   ans = (ans * ans)% mod;
   if(b%2==1)ans = (a * ans)% mod;
   return ans;
 }
 // 20*20   nCr Pascal Table
 public static long[][] ncrTable()throws Exception{
  long ncr[][] = new long[21][21];
  for(int i=0 ;i<=20 ;i++){ncr[i][0]=1;ncr[i][i]=1;}
  for(int j=0;j<=20 ;j++){
   for(int i=j+1;i<= 20 ;i++){
    ncr[i][j] = ncr[i-1][j]+ncr[i-1][j-1];
   }
  }
  return ncr;
 }
//*******************************I/O******************************//    
public static int i()throws Exception{
 //return Integer.parseInt(br.readLine().trim());
 return in.nextInt();
}
public static int[] is(int n)throws Exception{
  //int arr[] = new int[n+1];
  for(int i=1 ; i <= n ;i++)tempints[i] = in.nextInt();  
 return tempints;
}
public static long l()throws Exception{
 return in.nextLong();
}
public static long[] ls(int n)throws Exception{
  for(int i=1 ; i <= n ;i++)templongs[i] = in.nextLong();  
 return templongs;
}

public static double d()throws Exception{
 return in.nextDouble();
}
public static double[] ds(int n)throws Exception{
  for(int i=1 ; i <= n ;i++)tempdoubles[i] = in.nextDouble();  
 return tempdoubles;
}
public static char c()throws Exception{
 return in.nextCharacter();
}
public static char[] cs(int n)throws Exception{
  for(int i=1 ; i <= n ;i++)tempchars[i] = in.nextCharacter();  
 return tempchars;
}
public static String s()throws Exception{
 return in.nextLine();
}
public static BigInteger bi()throws Exception{
 return in.nextBigInteger();
}
//***********************I/O ENDS ***********************//
//*********************** 0.3%f [precision]***********************//
/* roundoff upto 2 digits 
   double roundOff = Math.round(a * 100.0) / 100.0;
                    or
   System.out.printf("%.2f", val);
                    
*/
/*
  print upto 2 digits after decimal
  val = ((long)(val * 100.0))/100.0;
  
*/
}

class FastReader{

    private boolean finished = false;

    private InputStream stream;
    private byte[] buf = new byte[1024];
    private int curChar;
    private int numChars;
    private SpaceCharFilter filter;

    public FastReader(InputStream stream){
        this.stream = stream;
    }

    public int read(){
        if (numChars == -1){
            throw new InputMismatchException ();
        }
        if (curChar >= numChars){
            curChar = 0;
            try{
                numChars = stream.read (buf);
            } catch (IOException e){
                throw new InputMismatchException ();
            }
            if (numChars <= 0){
                return -1;
            }
        }
        return buf[curChar++];
    }

    public int peek(){
        if (numChars == -1){
            return -1;
        }
        if (curChar >= numChars){
            curChar = 0;
            try{
                numChars = stream.read (buf);
            } catch (IOException e){
                return -1;
            }
            if (numChars <= 0){
                return -1;
            }
        }
        return buf[curChar];
    }

    public int nextInt(){
        int c = read ();
        while (isSpaceChar (c))
            c = read ();
        int sgn = 1;
        if (c == '-'){
            sgn = -1;
            c = read ();
        }
        int res = 0;
        do{
            if(c==','){
                c = read();
            }
            if (c < '0' || c > '9'){
                throw new InputMismatchException ();
            }
            res *= 10;
            res += c - '0';
            c = read ();
        } while (!isSpaceChar (c));
        return res * sgn;
    }

    public long nextLong(){
        int c = read ();
        while (isSpaceChar (c))
            c = read ();
        int sgn = 1;
        if (c == '-'){
            sgn = -1;
            c = read ();
        }
        long res = 0;
        do{
            if (c < '0' || c > '9'){
                throw new InputMismatchException ();
            }
            res *= 10;
            res += c - '0';
            c = read ();
        } while (!isSpaceChar (c));
        return res * sgn;
    }

    public String nextString(){
        int c = read ();
        while (isSpaceChar (c))
            c = read ();
        StringBuilder res = new StringBuilder ();
        do{
            res.appendCodePoint (c);
            c = read ();
        } while (!isSpaceChar (c));
        return res.toString ();
    }

    public boolean isSpaceChar(int c){
        if (filter != null){
            return filter.isSpaceChar (c);
        }
        return isWhitespace (c);
    }

    public static boolean isWhitespace(int c){
        return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
    }

    private String readLine0(){
        StringBuilder buf = new StringBuilder ();
        int c = read ();
        while (c != '\n' && c != -1){
            if (c != '\r'){
                buf.appendCodePoint (c);
            }
            c = read ();
        }
        return buf.toString ();
    }

    public String nextLine(){
        String s = readLine0 ();
        while (s.trim ().length () == 0)
            s = readLine0 ();
        return s;
    }

    public String nextLine(boolean ignoreEmptyLines){
        if (ignoreEmptyLines){
            return nextLine ();
        }else{
            return readLine0 ();
        }
    }

    public BigInteger nextBigInteger(){
        try{
            return new BigInteger (nextString ());
        } catch (NumberFormatException e){
            throw new InputMismatchException ();
        }
    }

    public char nextCharacter(){
        int c = read ();
        while (isSpaceChar (c))
            c = read ();
        return (char) c;
    }

    public double nextDouble(){
        int c = read ();
        while (isSpaceChar (c))
            c = read ();
        int sgn = 1;
        if (c == '-'){
            sgn = -1;
            c = read ();
        }
        double res = 0;
        while (!isSpaceChar (c) && c != '.'){
            if (c == 'e' || c == 'E'){
                return res * Math.pow (10, nextInt ());
            }
            if (c < '0' || c > '9'){
                throw new InputMismatchException ();
            }
            res *= 10;
            res += c - '0';
            c = read ();
        }
        if (c == '.'){
            c = read ();
            double m = 1;
            while (!isSpaceChar (c)){
                if (c == 'e' || c == 'E'){
                    return res * Math.pow (10, nextInt ());
                }
                if (c < '0' || c > '9'){
                    throw new InputMismatchException ();
                }
                m /= 10;
                res += (c - '0') * m;
                c = read ();
            }
        }
        return res * sgn;
    }

    public boolean isExhausted(){
        int value;
        while (isSpaceChar (value = peek ()) && value != -1)
            read ();
        return value == -1;
    }

    public String next(){
        return nextString ();
    }

    public SpaceCharFilter getFilter(){
        return filter;
    }

    public void setFilter(SpaceCharFilter filter){
        this.filter = filter;
    }

    public interface SpaceCharFilter{
        public boolean isSpaceChar(int ch);
    }
}
 /******************** Pair class ***********************/
 
 class Pair implements Comparable<Pair>{
 public int a;
 public int b;
 public Pair(){
  this.a = 0;
  this.b = 0;
 }
 public Pair(int a,int b){
  this.a = a;
  this.b = b;
 }
 public int compareTo(Pair p){
  if(this.a==p.a){
   return this.b-p.b;  
  }
  return this.a-p.a; 
 }
 public String toString(){
  return "a="+this.a+" b="+this.b;
 }
 
} 