#############
         ............#
         Z.Z.........#
         ######..Z...#
#.            ####.Z.#
#..              ##ZZ#
#..#              +..#
#..##             #.Z#
#...####          Z..#
#......#######   ..ZZ#
#.............  .....#
#...Z......... ......#
#...Z..########......#
#...####          Z..#
#..##             #..#
#..+              #..#
#..##            ##..#
#...####      ####...#
#......########......#
#...........Z.Z......#
#........∩..Z........#
######################