import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int[] pizza = new int[5];
        int ans = 1000000000;
        for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        }

        for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        }
        System.out.println(ans);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int[] pizza = new int[5];
        int ans = 1000000000;
        for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        }

        for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        }
        System.out.println(ans);
    }
} Main public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int[] pizza = new int[5];
        int ans = 1000000000;
        for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        }

        for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        }
        System.out.println(ans);
    } main {
        Scanner scan = new Scanner(System.in);

        int[] pizza = new int[5];
        int ans = 1000000000;
        for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        }

        for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        }
        System.out.println(ans);
    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int[] pizza = new int[5]; pizza new int[5] 5 int ans = 1000000000; ans 1000000000 for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        } int i = 0; int i = 0; i 0 i < 5 i 5 i++ i++ i {
            pizza[i] = scan.nextInt();
        } {
            pizza[i] = scan.nextInt();
        } pizza[i] = scan.nextInt() pizza[i] pizza i scan.nextInt() scan.nextInt scan for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        } int i = 0; int i = 0; i 0 i < 2*(pizza[3]+pizza[4])+1 i 2*(pizza[3]+pizza[4])+1 2*(pizza[3]+pizza[4]) 2 (pizza[3]+pizza[4]) pizza[3] pizza 3 pizza[4] pizza 4 1 i++ i++ i {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        } {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        } int a = Math.max(0, (pizza[3]-i/2)); a Math.max(0, (pizza[3]-i/2)) Math.max Math 0 (pizza[3]-i/2) pizza[3] pizza 3 i/2 i 2 int b = Math.max(0, (pizza[4]-i/2)); b Math.max(0, (pizza[4]-i/2)) Math.max Math 0 (pizza[4]-i/2) pizza[4] pizza 4 i/2 i 2 int c = i; c i ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c) ans Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c) Math.min Math ans pizza[0]*a + pizza[1]*b + pizza[2]*c pizza[0]*a + pizza[1]*b + pizza[2]*c pizza[0]*a pizza[0] pizza 0 a pizza[1]*b pizza[1] pizza 1 b pizza[2]*c pizza[2] pizza 2 c System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int[] pizza = new int[5];
        int ans = 1000000000;
        for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        }

        for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        }
        System.out.println(ans);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int[] pizza = new int[5];
        int ans = 1000000000;
        for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        }

        for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        }
        System.out.println(ans);
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        int[] pizza = new int[5];
        int ans = 1000000000;
        for(int i = 0; i < 5; i++) {
            pizza[i] = scan.nextInt();
        }

        for(int i = 0; i < 2*(pizza[3]+pizza[4])+1; i++) {
            int a = Math.max(0, (pizza[3]-i/2));
            int b = Math.max(0, (pizza[4]-i/2));
            int c = i;
            ans = Math.min(ans,pizza[0]*a + pizza[1]*b + pizza[2]*c);
        }
        System.out.println(ans);
    }
}