description: You are given three integers n, a, b. Determine if there exists a permutation p_1, p_2, …, p_n of integers from 1 to n, such that:
  
    * There are exactly a integers i with 2 ≤ i ≤ n-1 such that p_{i-1} < p_i > p_{i+1} (in other words, there are exactly a local maximums).
  
    * There are exactly b integers i with 2 ≤ i ≤ n-1 such that p_{i-1} > p_i < p_{i+1} (in other words, there are exactly b local minimums).
  
  
  
  
  If such permutations exist, find any such permutation.
  
  Input
  
  The first line of the input contains a single integer t (1 ≤ t ≤ 10^4) — the number of test cases. The description of test cases follows.
  
  The only line of each test case contains three integers n, a and b (2 ≤ n ≤ 10^5, 0 ≤ a,b ≤ n).
  
  The sum of n over all test cases doesn't exceed 10^5.
  
  Output
  
  For each test case, if there is no permutation with the requested properties, output -1.
  
  Otherwise, print the permutation that you are found. If there are several such permutations, you may print any of them.
  
  Example
  
  Input
  
  
  3
  4 1 1
  6 1 2
  6 4 0
  
  
  Output
  
  
  1 3 2 4
  4 2 3 1 5 6
  -1
  
  Note
  
  In the first test case, one example of such permutations is [1, 3, 2, 4]. In it p_1 < p_2 > p_3, and 2 is the only such index, and p_2> p_3 < p_4, and 3 the only such index.
  
  One can show that there is no such permutation for the third test case.
solution: import sys
  
  input = sys.stdin.readline
  
  def get_int():
      return int(input().rstrip())
  
  def get_arr():
      return [int(w) for w in input().split()]
  
  t = get_int()
  for _ in range(t):
      n, a, b = get_arr()
      if abs(a - b) > 1 or a + b > n - 2:
          print(-1)
      else:
          ans = []
          if a == b:
              for x, y in zip(range(1, a + 1), range(n, n - b, -1)):
                  ans.append(x)
                  ans.append(y)
              ans += list(range(a + 1, n - b + 1))
          if a > b:
              for x, y in zip(range(1, a + 1), range(n, n - a, -1)):
                  ans.append(x)
                  ans.append(y)
              ans += list(range(n - a, a, -1))
          if a < b:
              for x, y in zip(range(n, n - b, -1), range(1, b + 1)):
                  ans.append(x)
                  ans.append(y)
              ans += list(range(b + 1, n - b + 1))
  
          print(*ans)
  