C22212323232133313113313331333132313331323132213231312121231323221   >>    C2221232323213331311331333133313231333132313221323131212123132322   <<    C22212323232133313113313331333132313331323132213231312121231323223   >>      C22212323232133313113313331333132313331323132213231312121231323222   >>