B2ac4nty6i to B2acn3cy4cntyz6i

oooooooo.
.........
........o

B2ac3inqr4y5er to B2acn3cinqry4cy5er
B2ac3nq4intyz6i to B2acn3cnqy4cintyz6i

oooooooo.
.........
o.......o

B2ac3cinqr4y5er to B2acn3cinqr4cy5er
B2ac3cnq4intyz6i to B2acn3cnq4cintyz6i

oooooooo.o
..........
o.......o.