C222123232321333131133133313331323132313331312112113232133223121   >>    C22212323232133313113313331333132313231333131211211323213322312   <<    C222123232321333131133133313331323132313331312112113232133223123   >>      C222123232321333131133133313331323132313331312112113232133223122   >>