GA - GE || GA - GB - GC - GD - GE -
GF - GJ || GF - GG - GH - GI - GJ -
GK - GO || GK - GL - GM - GN - GO -
GP - GT || GP - GQ - GR - GS - GT -
GU - GZ || GU - GV - GW - GX - GY - GZ -