7w2b 8w2br 9w2brx ax2b bx2br

wn3br xn3brx yn3b zn3br 0n3brx

le4brx me4b ne4br oe4brx pe4b

a54b b54br c54brx d54b e54br

zv5br 0v5brx 1v5b 2v5br 3v5brx