C22212323232133313113313331333132313331323132213231312113213321   >>    C2221232323213331311331333133313231333132313221323131211321332   <<    C22212323232133313113313331333132313331323132213231312113213323   >>      C22212323232133313113313331333132313331323132213231312113213322   >>