""" day 6 part 1 """

import fileinput

room = [line for line in fileinput.input()]

guard_x = None
guard_y = None

for y,line in enumerate(room):
    for x,cell in enumerate(line):
        if cell in '^<>v':
            guard_x = x
            guard_y = y
            guard_d = cell

dirs = {
    '^': (0,-1,'>'),
    '>': (1,0,'v'),
    'v': (0,1,'<'),
    '<': (-1,0,'^')
}

visited = {}

while 0 <= guard_y < len(room) and 0 <= guard_x < len(room[guard_y]):
    dx, dy, turn = dirs[guard_d]

    print(guard_x,guard_y,guard_d)
    step_x = guard_x + dx
    step_y = guard_y + dy

    if 0 <= step_y < len(room) and 0 <= step_x < len(room[step_y]) and room[step_y][step_x] == '#':
        guard_d = turn
    else:
        visited.add((guard_x,guard_y))
        guard_x,guard_y = step_x,step_y

print(len(visited))