C22212323232133313113313331333132313331323132213231312122211321   >>    C2221232323213331311331333133313231333132313221323131212221132   <<    C22212323232133313113313331333132313331323132213231312122211323   >>      C22212323232133313113313331333132313331323132213231312122211322   >>