import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int[] a = new int[5];
    for (int i = 0; i < 5; i++) a[i] = sc. nextInt();
    System.out.println(a[4]-a[0] <= sc.nextInt() ? "Yay!" : ":(");
  }
} import java.util.*; util.* java class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int[] a = new int[5];
    for (int i = 0; i < 5; i++) a[i] = sc. nextInt();
    System.out.println(a[4]-a[0] <= sc.nextInt() ? "Yay!" : ":(");
  }
} Main public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int[] a = new int[5];
    for (int i = 0; i < 5; i++) a[i] = sc. nextInt();
    System.out.println(a[4]-a[0] <= sc.nextInt() ? "Yay!" : ":(");
  } main {
    Scanner sc = new Scanner(System.in);
    int[] a = new int[5];
    for (int i = 0; i < 5; i++) a[i] = sc. nextInt();
    System.out.println(a[4]-a[0] <= sc.nextInt() ? "Yay!" : ":(");
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int[] a = new int[5]; a new int[5] 5 for (int i = 0; i < 5; i++) a[i] = sc. nextInt(); int i = 0; int i = 0; i 0 i < 5 i 5 i++ i++ i a[i] = sc. nextInt(); a[i] = sc. nextInt() a[i] a i sc. nextInt() sc. nextInt sc System.out.println(a[4]-a[0] <= sc.nextInt() ? "Yay!" : ":(") System.out.println System.out System System.out a[4]-a[0] <= sc.nextInt() ? "Yay!" : ":(" a[4]-a[0] <= sc.nextInt() a[4]-a[0] a[4] a 4 a[0] a 0 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 = new int[5];
    for (int i = 0; i < 5; i++) a[i] = sc. nextInt();
    System.out.println(a[4]-a[0] <= sc.nextInt() ? "Yay!" : ":(");
  }
}