import copy

def flip_board(n, m, source_board):
  target_board = [[source_board[i][j] for i in range(n)] for j in range(m)]
  return target_board

def loopover(mixed_up_board, solved_board):
  n = len(solved_board)
  m = len(solved_board[0])
  is_flip = False
  if m % 2 == 1:
    is_flip = True
    mixed_up_board = flip_board(n, m, mixed_up_board)
    solved_board = flip_board(n, m, solved_board)
    n, m = m, n
  alpha_mapping = {}
  for i in range(n):
    for j in range(m):
      alpha_mapping[solved_board[i][j]] = (i, j)
  for i in range(n):
    for j in range(m):
      mixed_up_board[i][j] = alpha_mapping[mixed_up_board[i][j]]
  res = []
  flip_dir = {'L': 'U', 'U': 'L', 'R': 'D', 'D': 'R'}
  def Move(dir, idx):
    if dir == 'L':
      mixed_up_board[idx] = mixed_up_board[idx][1:] + [mixed_up_board[idx][0]]
    elif dir == 'R':
      mixed_up_board[idx] = [mixed_up_board[idx][-1]] + mixed_up_board[idx][:-1]
    elif dir == 'U':
      tmp_v = mixed_up_board[0][idx]
      for o in range(1, n):
        mixed_up_board[o - 1][idx] = mixed_up_board[o][idx]
      mixed_up_board[n - 1][idx] = tmp_v
    else:
      tmp_v = mixed_up_board[n - 1][idx]
      for o in range(n - 1, 0, -1):
        mixed_up_board[o][idx] = mixed_up_board[o - 1][idx]
      mixed_up_board[0][idx] = tmp_v
    if is_flip:
      dir = flip_dir[dir]
    res.append(dir + str(idx))
  def FancyMove(dir, idx):
    p = (idx + m - 2) % m
    q = (p + 1) % m
    r = idx
    invdir = 'R' if dir == 'L' else 'L'
    Move('U', p)
    Move(dir, n - 1)
    Move('D', p)
    Move(dir, n - 1)
    Move('U', p)
    Move(invdir, n - 1)
    Move(invdir, n - 1)
    Move('D', p)
  for i in range(n - 1):
    for j in range(m):
      x, y = i, j
      for k in range(i, n):
        for l in range(m):
          if mixed_up_board[k][l] == (i, j):
            x, y = k, l
      if (x, y) == (i, j):
        continue
      if x == i:
        Move('D', y)
        Move('R', x + 1)
        Move('U', y)
        x = i + 1
        y = (y + 1) % m
      if y == j:
        Move('L', x)
        y = (y + m - 1) % m
      dcnt = x - i
      for k in range(dcnt):
        Move('D', j)
      while y != j:
        Move('R', x)
        y = (y + 1) % m
      for k in range(dcnt):
        Move('U', j)
  if m == 2:
    if mixed_up_board[n - 1][0] != (n - 1, 0):
      Move('R', n - 1)
  else:
    i = n - 1
    for j in range(m - 2):
      y = j
      for l in range(j, m):
        if mixed_up_board[i][l] == (i, j):
          y = l
          break
      if y == j:
        continue
      while y > j + 1:
        FancyMove('L', y)
        y -= 2
      if y == j + 1:
        FancyMove('L', (j + 2) % m)
        FancyMove('L', (j + 2) % m)
    j = m - 2
    if mixed_up_board[i][j] == (i, j):
      pass
    else:
      if m % 2 == 1:
        res = None
      else:
        while j != 0:
          FancyMove('L', j)
          j -= 2
        Move('L', n - 1)
  bres = res
  r2 = []
  for x in res:
    if x[0] == 'D':
      r2.append(['C', int(x[1]), 1])
    elif x[0] == 'U':
      r2.append(['C', int(x[1]), 3])
    elif x[0] == 'L':
      r2.append(['R', int(x[1]), 3])
    elif x[0] == 'R':
      r2.append(['R', int(x[1]), 1])
  res = [copy.copy(r2[0])]
  for i in range(1, len(r2)):
    if r2[i][0] == res[-1][0] and r2[i][1] == res[-1][1]:
      res[-1][2] = (res[-1][2] + r2[i][2]) % 4
    else:
      while res[-1][2] == 0:
        res = res[:-1]
      res.append(copy.copy(r2[i]))
  while res[-1][2] == 0:
    res = res[:-1]
  return res

source_ = list(map(list, ['FHLE','MOIC','DNPB','KAGJ']))
target_ = list(map(list, ['ABCD','EFGH','IJKL','MNOP']))

source_ = []
for i in range(4):
  source_.append(input())
source_ = list(map(list, source_))
# print(source_)
res = loopover(source_, target_)
print(len(res))
for x in res:
  print(x[0], x[1], x[2])