C222123232321333131133133313331323133313231322132313121212113223231   >>    C22212323232133313113313331333132313331323132213231312121211322323   <<    C222123232321333131133133313331323133313231322132313121212113223233   >>      C222123232321333131133133313331323133313231322132313121212113223232   >>