C22212323232133313113313331333133313231323133311232332132111111   >>    C2221232323213331311331333133313331323132313331123233213211111   <<    C22212323232133313113313331333133313231323133311232332132111113   >>      C22212323232133313113313331333133313231323133311232332132111112   >>