m7qb n7qb7 o7qb73 p7qb q7qb7

byrb7 cyrb73 dyrb eyrb7 fyrb73

0osb73 1osb 2osb7 3osb73 4osb

pftb qftb7 rftb73 sftb tftb7

e6tb7 f6tb73 g6tb h6tb7 i6tb73