C222123232321333131133133313331333132313231333133311212312213122222121   >>    C22212323232133313113313331333133313231323133313331121231221312222212   <<    C222123232321333131133133313331333132313231333133311212312213122222123   >>      C222123232321333131133133313331333132313231333133311212312213122222122   >>