Initial state:
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...........
...........
...........
..1........
...........
...........

After 1 second:
...........
....1......
...........
...........
...........
...........
...........

After 2 seconds:
...........
...........
...........
...........
...........
......1....
...........

After 3 seconds:
...........
...........
........1..
...........
...........
...........
...........

After 4 seconds:
...........
...........
...........
...........
...........
...........
..........1

After 5 seconds:
...........
...........
...........
.1.........
...........
...........
...........