C222123232321333131133133313331323133313231333131331131331212322121   >>    C22212323232133313113313331333132313331323133313133113133121232212   <<    C222123232321333131133133313331323133313231333131331131331212322123   >>      C222123232321333131133133313331323133313231333131331131331212322122   >>