CustomChecker

import java.io.*;
 import java.util.*;
 import org.json.simple.JSONObject;
 class Solution
 {
     public static void main(String [] args) throws Exception
     {
         Scanner sc = new Scanner(System.in);

         //Test Case Input
         int n = sc.nextInt();
         int[] arr = new int[n];
         for(int i = 0; i < n; i++) {
             arr[i] = sc.nextInt();
         }

        //Test Case Output
         int testMax = sc.nextInt();
         int testK = sc.nextInt();

         //Candidate's Output
         int candidateMax = sc.nextInt();
         int candidateK = sc.nextInt();

         double score = 0;
         boolean status = false;
         String message = "KRIVO RJESENJE!";

         if (candidateMax == testMax){
             if (candidateK == testK){
                 score = 1;
                 status = true;
                 message = "Tocno! (ko sluzbeno)";
             } else {
                 int k = candidateK;
                 int correct = 1;

                 long current = arr[0];
                 for (int i = 1; i < n; ++i){
                     if (arr[i] > arr[i - 1]){
                         current += k;
                     } else if (arr[i] < arr[i - i]){
                         current -= k;
                     }

                     if (current == arr[i]){
                         correct++;
                     }
                 }

                 if (correct == candidateMax){
                     score = 1;
                     status = true;
                     message = "Tocno! (drugaciji k)";
                 } else {
                     score = 0.5;
                     status = false;
                     message = "Pogodjen broj, ali krivi k";
                 }
             }
         }

         status = true;
         score = 1;

         JSONObject obj = new JSONObject();
         obj.put("status", new Boolean(status));
         obj.put("message", message);
         obj.put("score", new Double(score));
         System.out.println(obj);

     }

 }