C22212323232133313113313331333133313231323132222123112113322111   >>    C2221232323213331311331333133313331323132313222212311211332211   <<    C22212323232133313113313331333133313231323132222123112113322113   >>      C22212323232133313113313331333133313231323132222123112113322112   >>