input: Write a function to calculate the total surface area of a cuboid given its three dimensions. If the given dimensions are zero or negative, return False. The function should return an integer representing the total surface area.
  assert find_total_surfacearea(2, 3, 4)==52
  assert find_total_surfacearea(1, 1, 1)==6
  assert find_total_surfacearea(0, 3, 4)==False
  assert find_total_surfacearea(2, -3, 4)==False
  assert find_total_surfacearea(2, 3, 0)==False
output: def find_total_surfacearea(l, w, h):
      if l <= 0 or w <= 0 or h <= 0:
          return False
      return 2 * (l * w + w * h + h * l)