C22212323232133313113313331333133313231323133313332311333131323111   >>    C2221232323213331311331333133313331323132313331333231133313132311   <<    C22212323232133313113313331333133313231323133313332311333131323113   >>      C22212323232133313113313331333133313231323133313332311333131323112   >>