import java.util.Scanner;

public class Main { 
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    int C = sc.nextInt();
    int X = sc.nextInt();
    int Y = sc.nextInt();
    int min =1000000000;
    for (int i =0; i<=Math.max(X,Y) * 2; i+=2) {
      int ans = i * C + Math.max(0,(X - i/2)) * A + Math.max(0,Y - i/2) * B;
      min = Math.min(ans,min);
    }
    System.out.println(min);
  }
}    
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz