C222123232321333131133133313331323133313231322132313121212221211121   >>    C22212323232133313113313331333132313331323132213231312121222121112   <<    C222123232321333131133133313331323133313231322132313121212221211123   >>      C222123232321333131133133313331323133313231322132313121212221211122   >>