import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int[] d = new int[6];

		for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		}

		System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(");
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int[] d = new int[6];

		for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		}

		System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(");
	}
} Main public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int[] d = new int[6];

		for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		}

		System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(");
	} main {

		Scanner sc = new Scanner(System.in);
		int[] d = new int[6];

		for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		}

		System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(");
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int[] d = new int[6]; d new int[6] 6 for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		} int i = 0; int i = 0; i 0 i < d.length i d.length d d.length i++ i++ i {
			d[i] = sc.nextInt();
		} {
			d[i] = sc.nextInt();
		} d[i] = sc.nextInt() d[i] d i sc.nextInt() sc.nextInt sc System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(") System.out.println System.out System System.out d[4] - d[0] <= d[5] ? "Yay!" : ":(" d[4] - d[0] <= d[5] d[4] - d[0] d[4] d 4 d[0] d 0 d[5] d 5 "Yay!" ":(" String[] args args public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int[] d = new int[6];

		for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		}

		System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(");
	}
} public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int[] d = new int[6];

		for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		}

		System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(");
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int[] d = new int[6];

		for(int i = 0; i < d.length; i++) {
			d[i] = sc.nextInt();
		}

		System.out.println(d[4] - d[0] <= d[5] ? "Yay!" : ":(");
	}
}