C222123232321333131133133313331323133313231323231312323221132111   >>    C22212323232133313113313331333132313331323132323131232322113211   <<    C222123232321333131133133313331323133313231323231312323221132113   >>      C222123232321333131133133313331323133313231323231312323221132112   >>