C222123232321333131133133313331333132313231333133311212312213121123111   >>    C22212323232133313113313331333133313231323133313331121231221312112311   <<    C222123232321333131133133313331333132313231333133311212312213121123113   >>      C222123232321333131133133313331333132313231333133311212312213121123112   >>