
import java.util.Scanner;

/**
 *
 * @author cs18097
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = 0;
        for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        }
        int k = sc.nextInt();
        if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        }

    }

} import java.util.Scanner; Scanner java.util public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = 0;
        for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        }
        int k = sc.nextInt();
        if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        }

    }

} Main /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = 0;
        for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        }
        int k = sc.nextInt();
        if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        }

    } main {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = 0;
        for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        }
        int k = sc.nextInt();
        if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        }

    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int min = sc.nextInt(); min sc.nextInt() sc.nextInt sc int max = 0; max 0 for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        } int i = 0; int i = 0; i 0 i < 4 i 4 i++ i++ i {
            max = sc.nextInt();
        } {
            max = sc.nextInt();
        } max = sc.nextInt() max sc.nextInt() sc.nextInt sc int k = sc.nextInt(); k sc.nextInt() sc.nextInt sc if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        } k < max - min k max - min max min {
            System.out.print(":(");
        } System.out.print(":(") System.out.print System.out System System.out ":(" {
            System.out.print("Yay!");
        } System.out.print("Yay!") System.out.print System.out System System.out "Yay!" String[] args args public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = 0;
        for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        }
        int k = sc.nextInt();
        if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        }

    }

} public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = 0;
        for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        }
        int k = sc.nextInt();
        if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        }

    }

} Main

import java.util.Scanner;

/**
 *
 * @author cs18097
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner sc = new Scanner(System.in);
        int min = sc.nextInt();
        int max = 0;
        for (int i = 0; i < 4; i++) {
            max = sc.nextInt();
        }
        int k = sc.nextInt();
        if (k < max - min) {
            System.out.print(":(");
        } else {
            System.out.print("Yay!");
        }

    }

}
