import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int[] x = new int[6];
    for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    }
    if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    }
  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int[] x = new int[6];
    for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    }
    if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    }
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int[] x = new int[6];
    for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    }
    if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    }
  } main {
    Scanner sc = new Scanner(System.in);
    int[] x = new int[6];
    for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    }
    if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    }
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int[] x = new int[6]; x new int[6] 6 for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    } int i=0; int i=0; i 0 i<6 i 6 i++ i++ i {
      x[i] = sc.nextInt();
    } {
      x[i] = sc.nextInt();
    } x[i] = sc.nextInt() x[i] x i sc.nextInt() sc.nextInt sc if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    } x[4]-x[0]<=x[5] x[4]-x[0] x[4] x 4 x[0] x 0 x[5] x 5 {
      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{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int[] x = new int[6];
    for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    }
    if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    }
  }
} public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int[] x = new int[6];
    for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    }
    if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    }
  }
} Main
import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int[] x = new int[6];
    for(int i=0; i<6; i++){
      x[i] = sc.nextInt();
    }
    if(x[4]-x[0]<=x[5]){
      System.out.println("Yay!");
    }else{
      System.out.println(":(");
    }
  }
}