import java.util.*;

class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();sc.nextInt();sc.nextInt();sc.nextInt();
    System.out.println(sc.nextInt()-a>sc.nextInt()?":(":"Yay!");
  }
} import java.util.*; util.* java class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();sc.nextInt();sc.nextInt();sc.nextInt();
    System.out.println(sc.nextInt()-a>sc.nextInt()?":(":"Yay!");
  }
} Main public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();sc.nextInt();sc.nextInt();sc.nextInt();
    System.out.println(sc.nextInt()-a>sc.nextInt()?":(":"Yay!");
  } main {
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();sc.nextInt();sc.nextInt();sc.nextInt();
    System.out.println(sc.nextInt()-a>sc.nextInt()?":(":"Yay!");
  } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int a=sc.nextInt(); a sc.nextInt() sc.nextInt sc sc.nextInt() sc.nextInt sc sc.nextInt() sc.nextInt sc sc.nextInt() sc.nextInt sc System.out.println(sc.nextInt()-a>sc.nextInt()?":(":"Yay!") System.out.println System.out System System.out sc.nextInt()-a>sc.nextInt()?":(":"Yay!" sc.nextInt()-a>sc.nextInt() sc.nextInt()-a sc.nextInt() sc.nextInt sc a sc.nextInt() sc.nextInt sc ":(" "Yay!" String[] args args
import java.util.*;

class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt();sc.nextInt();sc.nextInt();sc.nextInt();
    System.out.println(sc.nextInt()-a>sc.nextInt()?":(":"Yay!");
  }
}
