C22212323232133313113313331333133313231323222213131233132323131   >>    C2221232323213331311331333133313331323132322221313123313232313   <<    C22212323232133313113313331333133313231323222213131233132323133   >>      C22212323232133313113313331333133313231323222213131233132323132   >>