C22213331333133313112331323133313331333133313112331323121123311   >>    C2221333133313331311233132313331333133313331311233132312112331   <<    C22213331333133313112331323133313331333133313112331323121123313   >>      C22213331333133313112331323133313331333133313112331323121123312   >>