C22212323232133313113313331333133313231323223323232233312112111   >>    C2221232323213331311331333133313331323132322332323223331211211   <<    C22212323232133313113313331333133313231323223323232233312112113   >>      C22212323232133313113313331333133313231323223323232233312112112   >>