C22212323232133313113313331333132313331323132213231312121212323131   >>    C2221232323213331311331333133313231333132313221323131212121232313   <<    C22212323232133313113313331333132313331323132213231312121212323133   >>      C22212323232133313113313331333132313331323132213231312121212323132   >>