B2ac3iqr4yz5er to B2acn3ciqry4cyz5er
B2ac3iq4iyz5er to B2acn3ciqy4ciyz5er

ooooooooo.
..........
o........o

B2a3c4intyz6i to B2an3c4intyz6i

oooo.ooo.o
..........
..........