import java.io.*;

public class Main
{
    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int a = Integer.parseInt(br.readLine());
        br.readLine(); br.readLine(); br.readLine();
        int e = Integer.parseInt(br.readLine());
        int k= Integer.parseInt(br.readLine());
        if(e-a<=k) bw.write("Yay!");
        else bw.write(":(");
        bw.close();

    }
} import java.io.*; io.* java public class Main
{
    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int a = Integer.parseInt(br.readLine());
        br.readLine(); br.readLine(); br.readLine();
        int e = Integer.parseInt(br.readLine());
        int k= Integer.parseInt(br.readLine());
        if(e-a<=k) bw.write("Yay!");
        else bw.write(":(");
        bw.close();

    }
} Main public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int a = Integer.parseInt(br.readLine());
        br.readLine(); br.readLine(); br.readLine();
        int e = Integer.parseInt(br.readLine());
        int k= Integer.parseInt(br.readLine());
        if(e-a<=k) bw.write("Yay!");
        else bw.write(":(");
        bw.close();

    } main {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int a = Integer.parseInt(br.readLine());
        br.readLine(); br.readLine(); br.readLine();
        int e = Integer.parseInt(br.readLine());
        int k= Integer.parseInt(br.readLine());
        if(e-a<=k) bw.write("Yay!");
        else bw.write(":(");
        bw.close();

    } BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); bw new BufferedWriter(new OutputStreamWriter(System.out)) int a = Integer.parseInt(br.readLine()); a Integer.parseInt(br.readLine()) Integer.parseInt Integer br.readLine() br.readLine br br.readLine() br.readLine br br.readLine() br.readLine br br.readLine() br.readLine br int e = Integer.parseInt(br.readLine()); e Integer.parseInt(br.readLine()) Integer.parseInt Integer br.readLine() br.readLine br int k= Integer.parseInt(br.readLine()); k Integer.parseInt(br.readLine()) Integer.parseInt Integer br.readLine() br.readLine br if(e-a<=k) bw.write("Yay!");
        else bw.write(":("); e-a<=k e-a e a k bw.write("Yay!") bw.write bw "Yay!" bw.write(":(") bw.write bw ":(" bw.close() bw.close bw String[] args args public class Main
{
    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int a = Integer.parseInt(br.readLine());
        br.readLine(); br.readLine(); br.readLine();
        int e = Integer.parseInt(br.readLine());
        int k= Integer.parseInt(br.readLine());
        if(e-a<=k) bw.write("Yay!");
        else bw.write(":(");
        bw.close();

    }
} public class Main
{
    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int a = Integer.parseInt(br.readLine());
        br.readLine(); br.readLine(); br.readLine();
        int e = Integer.parseInt(br.readLine());
        int k= Integer.parseInt(br.readLine());
        if(e-a<=k) bw.write("Yay!");
        else bw.write(":(");
        bw.close();

    }
} Main
import java.io.*;

public class Main
{
    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        int a = Integer.parseInt(br.readLine());
        br.readLine(); br.readLine(); br.readLine();
        int e = Integer.parseInt(br.readLine());
        int k= Integer.parseInt(br.readLine());
        if(e-a<=k) bw.write("Yay!");
        else bw.write(":(");
        bw.close();

    }
}
