def main():
ex19_0 = get_input_by_lines(19, strip=False)
ex19 = np.array(list(map(list, ex19_0)))
map19 = Map(ex19)
map19.set_pos(map19.find_start())
finished = False
while not finished:
finished = map19.step()
print(''.join(map19.letters))
def main():
ex19_0 = get_input_by_lines(19, strip=False)
ex19 = np.array(list(map(list, ex19_0)))
map19 = Map(ex19)
map19.set_pos(map19.find_start())
finished = False
cnt = 0
while not finished:
finished = map19.step()
if not finished:
cnt += 1
print(cnt)
