C22213331333133313112331323133313331333133313231211111333133313133221211   >>    C2221333133313331311233132313331333133313331323121111133313331313322121   <<    C22213331333133313112331323133313331333133313231211111333133313133221213   >>      C22213331333133313112331323133313331333133313231211111333133313133221212   >>