C22212323232133313113313331333132313331323133313332331132222213231211   >>    C2221232323213331311331333133313231333132313331333233113222221323121   <<    C22212323232133313113313331333132313331323133313332331132222213231213   >>      C22212323232133313113313331333132313331323133313332331132222213231212   >>