20 50 10
..........#.....##..
####...##...##.###.#
....#.##..#........#
#.#...#...#..###.#..
.#.#.#.###....##.##.
.#.#.#......###....#
.#...#.##...###..##.
...#...#..###.......
.####.#.....###..##.
.....##..##...#.##.#
.##.##....##........
.##...##.....####.##
#...#..###.#.##...#.
###.##..#.#......#..
...#...##.#.###...#.
.#####........##....
.#..###....##...###.
....#.###.##..#.###.
.##...........#.....
......##.##.##...##.
