Artur

n = int(input())

data_map = []
x = y = 0
for i in range(n):
    data_map.append(list(input()))
    if 'I' in data_map[-1]:
        x = data_map[-1].index('I')
        data_map[-1][x] = '.'
        y = i


points = {(x, y): {0}}
dir = 0
while True:
    if dir % 2 == 0:
        y += -1 if dir == 0 else 1
    else:
        x += 1 if dir == 1 else -1

    if dir in points.get((x, y), set()):
        print('LOOP')
        break

    if 0 <= x < n and 0 <= y < n:
        if data_map[y][x] == 'X':
            points[(x, y)] = points.get((x, y), set()) | {dir}
            dir += 1 if dir != 3 else -3
    else:
        print('OUT', 'MINUS' if y < 0 or x < 0 else 'PLUS', end='_')
        print('Y' if 0 <= x < n else 'X')
        break