import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int O, o, A, a, B, b, AB, ab; //upper case is positive
        final int Of, of, Af, af, Bf, bf, ABf, abf;
        int c = 0;

        o = s.nextInt();
        O = s.nextInt();
        a = s.nextInt();
        A = s.nextInt();
        b = s.nextInt();
        B = s.nextInt();
        ab = s.nextInt();
        AB = s.nextInt();
        //next line
        of = s.nextInt();
        Of = s.nextInt();
        af = s.nextInt();
        Af = s.nextInt();
        bf = s.nextInt();
        Bf = s.nextInt();
        abf = s.nextInt();
        ABf = s.nextInt();

        if(o >= of) { //o- is most restrictive
            o -= of; c += of;
        }
        else {
            c += o; o = 0;
        }

        //o+
        if(O >= Of) {
            c += Of; O -= Of;
        }
        else if((o + O) >= Of) {
            c += Of; o -= (Of - O); O = 0;
        }
        else {
            c += (o + O); o = 0; O = 0;
        }

        //a-
        if(a >= af) {
            c += af; a -= af;
        }
        else if((o + a) >= af) {
            c += af; o -= (af - a); a = 0;
        }
        else {
            c += a; a = 0;
        }

        //a+
        if(A >= Af) {
            c += Af; A -= Af;
        }
        else if((A + a) >= Af) {
            c += Af; a -= (Af - A); A = 0;
        }
        else if((A + a + O) >= Af) {
            c += Af; O -= (Af - a - A); a = 0; A = 0;
        }
        else if((A + a + O + o) >= Af) {
            c += Af; o -= (Af - a - A - O); O = 0; a = 0; A = 0;
        }
        else {
            c += (O + o + A + a); O = 0; o = 0; A = 0; a = 0;
        }

        //b-
        if(b >= bf) {
            c += bf; b -= bf;
        }
        else if((o + b) >= bf) {
            c += bf; o -= (bf - b); b = 0;
        }
        else {
            c += b; b = 0;
        }

        //a+
        if(B >= Bf) {
            c += Bf; B -= Bf;
        }
        else if((B + b) >= Bf) {
            c += Bf; b -= (Bf - B); B = 0;
        }
        else if((B + b + O) >= Bf) {
            c += Bf; O -= (Bf - b - B); b = 0; B = 0;
        }
        else if((B + b + O + o) >= Af) {
            c += Bf; o -= (Bf - b - B - O); O = 0; b = 0; B = 0;
        }
        else {
            c += (O + o + B + b); O = 0; o = 0; B = 0; b = 0;
        }

        //ab (both)
        int negative = a + b + o + ab;
        int positive = A + B + O + AB;
        if(negative >= abf) {
            c += abf; negative -= abf;
        }
        else {
            c += negative; negative = 0;
        }

        if((negative + positive) >= ABf) {
            c += ABf;
        }
        else {
            c += (negative + positive);
        }

        System.out.println(c);

    }
}