=== step 0 ===
...211..2.
2.22....1.
2.1...22..
2...1212..
.12..2.222
21211.11..
.....22.22
211...1..1
..1.222...
12222.1.1.
=== step 1 ===
..221.....
..2..12.1.
2.1.2...1.
2.211.....
..........
2..11.....
....2...22
.1112...11
....2.2...
.22.2.11..
=== step 2 ===
..2211....
..2..1.2..
..1.2..2..
..2.1.....
.22.......
...11.....
.2...2..22
..1.2..211
....2.2.1.
...2..11..
=== step 3 ===
..22111...
.22..1....
.21.222...
..2.......
.22.1.....
.2.11.....
..2..2.2.2
...22.2...
....2.2..1
.....211..
=== step 4 ===
.222111...
..........
....222...
....2.....
.2..1.....
.2..12....
..2..22...
...22.222.
...22.....
.....211..
=== step 5 ===
..2211....
..2.......
....22....
...22.....
...21.....
.2221.2...
..2.......
..2...22..
...2....2.
....221...
=== step 6 ===
..221.....
..2.......
....22....
..........
..........
.2..11....
.....122..
..22...2..
...22.....
....22....
=== step 7 ===
..22......
..2..2....
..........
..........
..........
....11....
..22.1.2..
..22.2.2..
..2..2....
...222....
=== step 8 ===
..22......
..22......
..........
..........
..........
...2111...
..2..1....
.2...2....
..2..2....
...222....
=== step 9 ===
..22......
..22......
..........
..........
....11....
...2111...
..22......
.22.222...
..22.22...
...222....
=== step 10 ===
..22......
..22......
..........
..........
...2..1...
..2...1...
.2........
.2....2...
.2........
..22.22...