C22212323232133313113313331333132313331323132313331132213221121   >>    C2221232323213331311331333133313231333132313231333113221322112   <<    C22212323232133313113313331333132313331323132313331132213221123   >>      C22212323232133313113313331333132313331323132313331132213221122   >>