C22212323232133313113313331333133313231323223323232322331333121   >>    C2221232323213331311331333133313331323132322332323232233133312   <<    C22212323232133313113313331333133313231323223323232322331333123   >>      C22212323232133313113313331333133313231323223323232322331333122   >>