BotClean partially observable

X, Y = 0, 1
W, H = 5, 5
X_MOVE = {+1: 'RIGHT', -1: 'LEFT'}
Y_MOVE = {-1: 'UP', +1: 'DOWN'}
def sign(x):
  if x > 0: return +1
  if x < 0: return -1
  return 0

def next_move(posr, posc, board):
  path = [
    (1,1), (2,1), (3,1), (3,2), (3,3), (2,3), (1,3), (1,2)
  ]
  bot_pos = (posc, posr)
  if board[posr][posc] == 'd':
    print "CLEAN"
    return

  max_dist = W * W + H * H
  min_target_dist = max_dist
  target_pos = None
  follow_path = False
  path_index = 0
  for y in range(H):
    for x in range(W):
      v = board[y][x]
      if v != 'd':
        continue
      pos = (x,y)
      x_delta = pos[X] - bot_pos[X]
      y_delta = pos[Y] - bot_pos[Y]
      dist = (x_delta ** 2) + (y_delta ** 2)
      if dist < min_target_dist:
        min_target_dist = dist
        target_pos = pos
  if not target_pos:
    follow_path = True
    for i,pos in enumerate(path):
      x_delta = pos[X] - bot_pos[X]
      y_delta = pos[Y] - bot_pos[Y]
      dist = (x_delta ** 2) + (y_delta ** 2)
      if dist < min_target_dist:
        min_target_dist = dist
        target_pos = pos
        path_index = i

  x_delta = target_pos[X] - bot_pos[X]
  y_delta = target_pos[Y] - bot_pos[Y]
  if x_delta == 0 and y_delta == 0:
    target_pos = path[(path_index+1) % len(path)]
    x_delta = target_pos[X] - bot_pos[X]
    y_delta = target_pos[Y] - bot_pos[Y]

  x_dir = sign(x_delta)
  y_dir = sign(y_delta)
  if abs(x_delta) > abs(y_delta):
    action = X_MOVE[x_dir]
  else:
    action = Y_MOVE[y_dir]
  print action


if __name__ == "__main__":
    pos = [int(i) for i in raw_input().strip().split()]
    board = [[j for j in raw_input().strip()] for i in range(5)]
    next_move(pos[0], pos[1], board)