import java.util.*;
 
public class Main {
  public static void main (String[] args) {
    Scanner in = new Scanner(System.in);
    int f = in.nextInt();
    for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    }
    int l = in.nextInt();
    int w = in.nextInt();
    String ans = w < l - f ? ":(" : "Yay!";
    System.out.println(ans);
  }
} import java.util.*; util.* java public class Main {
  public static void main (String[] args) {
    Scanner in = new Scanner(System.in);
    int f = in.nextInt();
    for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    }
    int l = in.nextInt();
    int w = in.nextInt();
    String ans = w < l - f ? ":(" : "Yay!";
    System.out.println(ans);
  }
} Main public static void main (String[] args) {
    Scanner in = new Scanner(System.in);
    int f = in.nextInt();
    for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    }
    int l = in.nextInt();
    int w = in.nextInt();
    String ans = w < l - f ? ":(" : "Yay!";
    System.out.println(ans);
  } main {
    Scanner in = new Scanner(System.in);
    int f = in.nextInt();
    for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    }
    int l = in.nextInt();
    int w = in.nextInt();
    String ans = w < l - f ? ":(" : "Yay!";
    System.out.println(ans);
  } Scanner in = new Scanner(System.in); in new Scanner(System.in) int f = in.nextInt(); f in.nextInt() in.nextInt in for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    } int i = 0; int i = 0; i 0 i < 3 i 3 i++ i++ i {
      int dum = in.nextInt();
    } {
      int dum = in.nextInt();
    } int dum = in.nextInt(); dum in.nextInt() in.nextInt in int l = in.nextInt(); l in.nextInt() in.nextInt in int w = in.nextInt(); w in.nextInt() in.nextInt in String ans = w < l - f ? ":(" : "Yay!"; ans w < l - f ? ":(" : "Yay!" w < l - f w l - f l f ":(" "Yay!" 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 in = new Scanner(System.in);
    int f = in.nextInt();
    for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    }
    int l = in.nextInt();
    int w = in.nextInt();
    String ans = w < l - f ? ":(" : "Yay!";
    System.out.println(ans);
  }
} public class Main {
  public static void main (String[] args) {
    Scanner in = new Scanner(System.in);
    int f = in.nextInt();
    for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    }
    int l = in.nextInt();
    int w = in.nextInt();
    String ans = w < l - f ? ":(" : "Yay!";
    System.out.println(ans);
  }
} Main
import java.util.*;
 
public class Main {
  public static void main (String[] args) {
    Scanner in = new Scanner(System.in);
    int f = in.nextInt();
    for (int i = 0; i < 3; i++) {
      int dum = in.nextInt();
    }
    int l = in.nextInt();
    int w = in.nextInt();
    String ans = w < l - f ? ":(" : "Yay!";
    System.out.println(ans);
  }
}