
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

	static int[][] memo;

	public static int hoge(int current, int n, String last) {
		return 0;
	}

	public static void main(String[] args) throws IOException {
		BufferedReader bf = null;
		bf = new BufferedReader(new InputStreamReader(System.in));
		int a,e,k;
		String str;
		str = bf.readLine();
		a = Integer.parseInt(str);
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		e = Integer.parseInt(str);
		str = bf.readLine();
		k = Integer.parseInt(str);
		if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		}
	}
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io public class Main {

	static int[][] memo;

	public static int hoge(int current, int n, String last) {
		return 0;
	}

	public static void main(String[] args) throws IOException {
		BufferedReader bf = null;
		bf = new BufferedReader(new InputStreamReader(System.in));
		int a,e,k;
		String str;
		str = bf.readLine();
		a = Integer.parseInt(str);
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		e = Integer.parseInt(str);
		str = bf.readLine();
		k = Integer.parseInt(str);
		if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		}
	}
} Main static int[][] memo; memo public static int hoge(int current, int n, String last) {
		return 0;
	} hoge {
		return 0;
	} return 0; 0 int current current int n n String last last public static void main(String[] args) throws IOException {
		BufferedReader bf = null;
		bf = new BufferedReader(new InputStreamReader(System.in));
		int a,e,k;
		String str;
		str = bf.readLine();
		a = Integer.parseInt(str);
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		e = Integer.parseInt(str);
		str = bf.readLine();
		k = Integer.parseInt(str);
		if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		}
	} main {
		BufferedReader bf = null;
		bf = new BufferedReader(new InputStreamReader(System.in));
		int a,e,k;
		String str;
		str = bf.readLine();
		a = Integer.parseInt(str);
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		e = Integer.parseInt(str);
		str = bf.readLine();
		k = Integer.parseInt(str);
		if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		}
	} BufferedReader bf = null; bf null bf = new BufferedReader(new InputStreamReader(System.in)) bf new BufferedReader(new InputStreamReader(System.in)) int a a e e k; k String str; str str = bf.readLine() str bf.readLine() bf.readLine bf a = Integer.parseInt(str) a Integer.parseInt(str) Integer.parseInt Integer str str = bf.readLine() str bf.readLine() bf.readLine bf str = bf.readLine() str bf.readLine() bf.readLine bf str = bf.readLine() str bf.readLine() bf.readLine bf str = bf.readLine() str bf.readLine() bf.readLine bf e = Integer.parseInt(str) e Integer.parseInt(str) Integer.parseInt Integer str str = bf.readLine() str bf.readLine() bf.readLine bf k = Integer.parseInt(str) k Integer.parseInt(str) Integer.parseInt Integer str if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		} e-a <= k e-a e a k {
			System.out.println("Yay!");
		} System.out.println("Yay!") System.out.println System.out System System.out "Yay!" {
			System.out.println(":(");
		} System.out.println(":(") System.out.println System.out System System.out ":(" String[] args args public class Main {

	static int[][] memo;

	public static int hoge(int current, int n, String last) {
		return 0;
	}

	public static void main(String[] args) throws IOException {
		BufferedReader bf = null;
		bf = new BufferedReader(new InputStreamReader(System.in));
		int a,e,k;
		String str;
		str = bf.readLine();
		a = Integer.parseInt(str);
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		e = Integer.parseInt(str);
		str = bf.readLine();
		k = Integer.parseInt(str);
		if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		}
	}
} public class Main {

	static int[][] memo;

	public static int hoge(int current, int n, String last) {
		return 0;
	}

	public static void main(String[] args) throws IOException {
		BufferedReader bf = null;
		bf = new BufferedReader(new InputStreamReader(System.in));
		int a,e,k;
		String str;
		str = bf.readLine();
		a = Integer.parseInt(str);
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		e = Integer.parseInt(str);
		str = bf.readLine();
		k = Integer.parseInt(str);
		if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		}
	}
} Main

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

	static int[][] memo;

	public static int hoge(int current, int n, String last) {
		return 0;
	}

	public static void main(String[] args) throws IOException {
		BufferedReader bf = null;
		bf = new BufferedReader(new InputStreamReader(System.in));
		int a,e,k;
		String str;
		str = bf.readLine();
		a = Integer.parseInt(str);
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		str = bf.readLine();
		e = Integer.parseInt(str);
		str = bf.readLine();
		k = Integer.parseInt(str);
		if(e-a <= k) {
			System.out.println("Yay!");
		} else {
			System.out.println(":(");
		}
	}
}