=== step 0 ===
......
.1.1..
..1...
...1.1
....1.
......
=== step 1 ===
......
..1...
..111.
...11.
....1.
......
=== step 2 ===
......
..1...
..1.1.
..1..1
...11.
......
=== step 3 ===
......
...1..
.11...
..1..1
...11.
......
=== step 4 ===
......
..1...
.111..
.11.1.
...11.
......
=== step 5 ===
......
.111..
......
.1..1.
..111.
......
=== step 6 ===
..1...
..1...
.1.1..
..1.1.
..111.
...1..
=== step 7 ===
......
.111..
.1.1..
.1..1.
..1.1.
..111.
=== step 8 ===
..1...
.1.1..
11.11.
.1..1.
.11.11
..1.1.
=== step 9 ===
..1...
11.11.
11.11.
......
.11.11
.11.11
=== step 10 ===
.111..
1...1.
11.11.
1....1
.11.11
.11.11