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from queue import Queue
N, M = tuple(map(int, input().split()))
maze = []
for i in range(N):
maze.append(list(input()))
targets = dict()
for y, row in enumerate(maze):
for x, val in enumerate(row):
if val == "S":
starting_pos = (x, y)
maze[y][x] = '.'
elif val == ".":
targets[(x, y)] = -1
# Check Cameras
temp = [row[:] for row in maze]
for y, row in enumerate(temp):
for x, val in enumerate(row):
if val == "C":
# check up
for i in range(y+1, N):
if temp[i][x] == ".":
maze[i][x] = "W"
elif temp[i][x] == "W" or temp[i][x] == "C":
break
for i in range(y-1, -1, -1):
if temp[i][x] == ".":
maze[i][x] = "W"
elif temp[i][x] == "W" or temp[i][x] == "C":
break
for i in range(x+1, M):
if temp[y][i] == ".":
maze[y][i] = "W"
elif temp[y][i] == "W" or temp[y][i] == "C":
break
for i in range(x-1, -1, -1):
if temp[y][i] == ".":
maze[y][i] = "W"
elif temp[y][i] == "W" or temp[y][i] == "C":
break
maze[y][x] = 'W'
# Check Conveyors
for y, row in enumerate(maze):
for x, val in enumerate(row):
if val == "L":
if maze[y][x - 1] in ("R", "W"):
maze[y][x] = "W"
elif val == "R":
if maze[y][x + 1] in ("L", "W"):
maze[y][x] = "W"
elif val == "U":
if maze[y - 1][x] in ("D", "W"):
maze[y][x] = "W"
elif val == "D":
if maze[y + 1][x] in ("U", "W"):
maze[y][x] = "W"
# for i in maze:
# print(*i)
if maze[starting_pos[1]][starting_pos[0]] == 'W':
for i in targets.values():
print(i)
quit()
seen = set()
q = Queue()
q.put(starting_pos)
q.put("|")
movement = {
"U": (0, -1),
"D": (0, 1),
"L": (-1, 0),
"R": (1, 0)
}
steps = 0
while not q.empty():
current = q.get()
if current == "|":
steps += 1
if not q.empty():
q.put("|")
continue
if current in seen:
continue
else:
seen.add(current)
x, y = current
while maze[y][x] in movement.keys():
t_x = x
t_x += movement[maze[y][x]][0]
y += movement[maze[y][x]][1]
x = t_x
if (x,y) in targets:
if targets[(x,y)] == -1:
targets[(x,y)] = steps
if maze[y - 1][x] == '.':
q.put((x, y - 1))
elif maze[y - 1][x] in (movement.keys()):
q.put((x + movement[maze[y - 1][x]][0], y - 1 + movement[maze[y - 1][x]][1]))
if maze[y + 1][x] == '.':
q.put((x, y + 1))
elif maze[y + 1][x] in (movement.keys()):
q.put((x + movement[maze[y + 1][x]][0], y + 1 + movement[maze[y + 1][x]][1]))
if maze[y][x - 1] == '.':
q.put((x - 1, y))
elif maze[y][x - 1] in (movement.keys()):
q.put((x - 1 + movement[maze[y][x - 1]][0], y + movement[maze[y][x - 1]][1]))
if maze[y][x + 1] == '.':
q.put((x + 1, y))
elif maze[y][x + 1] in (movement.keys()):
q.put((x + 1 + movement[maze[y][x + 1]][0], y + movement[maze[y][x + 1]][1]))
for i in targets.values():
print(i)
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