A => 1
B => 1
C => 1
AW => 1
AX => 1
AY => 1
AZ => 1
BW => 1
BX => 1
BY => 1
BZ => 1
CW => 1
CX => 1
CY => 1
CZ => 1
AWW => 1
AWX => 1
AWY => 1
AWZ => 1
AXW => 1
AXX => 1
AXY => 1
AXZ => 1
AYW => 1