import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner koko = new Scanner(System.in);
        int[] n = new int[26];
        for(int i=0; i<26; i++){
            n[i]=koko.nextInt();
        }
        int dn = n[3];
        int en = n[4];
        int hn = n[7];
        int ln = n[11];
        int on = n[14];
        int rn = n[17];
        int wn = n[22];
        int o = 0;
        if(on%2==0){
            o=(on/2)*(on/2);
        }else{
            o=(on+1)*(on-1)/4;
        }
        long l=0;
        if(ln%3==0){
            if(ln>=3){
                l=1;
            }
            for(int i=1; i<ln/3; i++){
                l=l*(i+1)*(i+1)*(2*i+1)/(i*i*(2*i-1));
            }
        }else{
            if(ln>3){
                l=1;
            }
            int ama = ln%3;
            int a=(ln-ama)/3;
            for(int i=1; i<a; i++){
                l=l*(i+1)*2*(i+1)*(2*i+1)/(i*2*i*(2*i-1));
            }
            int b = 1+(ln-3-ama)*2/3;
            for(int i=0; i<ama; i++){
                l=l*(b+2+i)/(b+i);
            }
        }
        System.out.println(dn*en*hn*rn*wn*o*l);
    }
    
}