C22212323232133313113313331333133313231323132222123312312111311   >>    C2221232323213331311331333133313331323132313222212331231211131   <<    C22212323232133313113313331333133313231323132222123312312111313   >>      C22212323232133313113313331333133313231323132222123312312111312   >>