C22212323232133313113313331333132313331323132213231312121321131   >>    C2221232323213331311331333133313231333132313221323131212132113   <<    C22212323232133313113313331333132313331323132213231312121321133   >>      C22212323232133313113313331333132313331323132213231312121321132   >>