description: Polycarp doesn't like integers that are divisible by 3 or end with the digit 3 in their decimal representation. Integers that meet both conditions are disliked by Polycarp, too.
  
  Polycarp starts to write out the positive (greater than 0) integers which he likes: 1, 2, 4, 5, 7, 8, 10, 11, 14, 16, .... Output the k-th element of this sequence (the elements are numbered from 1).
  
  Input
  
  The first line contains one integer t (1 ≤ t ≤ 100) — the number of test cases. Then t test cases follow.
  
  Each test case consists of one line containing one integer k (1 ≤ k ≤ 1000).
  
  Output
  
  For each test case, output in a separate line one integer x — the k-th element of the sequence that was written out by Polycarp.
  
  Example
  
  Input
  
  
  10
  1
  2
  3
  4
  5
  6
  7
  8
  9
  1000
  
  
  Output
  
  
  1
  2
  4
  5
  7
  8
  10
  11
  14
  1666
solution: import java.util.Scanner;
  
  public class Solution
  {
      public static void main(String[] args)
      {
          Scanner sc = new Scanner(System.in);
          int t = sc.nextInt();
          int k, num = 1;
          boolean bool = true;
          String aid;
          int[] array = new int[t];
          for(int i = 0; i < t; i++){
              num = 1;
              bool = true;
              k = sc.nextInt();
              //Starting at 2, cause we already got the first by default
              for(int j =2; j <= k; j++){ 
                  if(bool){
                      num++;
                  }
                  else{
                      num += 2;
                  }
                  bool = !bool;
                  aid = Integer.toString(num);
                  if(Character.getNumericValue(aid.charAt(aid.length() - 1) ) == 3){
                      if(bool){
                          num++;
                      }
                      else{
                          num += 2;
                      }
                      bool = !bool;
                  }
              }
              array[i] = num;
          }
          sc.close();
          for(int x: array){
              System.out.println(x);
          }
      }
  }