C222123232321333131133133313331323132313331312112113233232211112121   >>    C22212323232133313113313331333132313231333131211211323323221111212   <<    C222123232321333131133133313331323132313331312112113233232211112123   >>      C222123232321333131133133313331323132313331312112113233232211112122   >>