C22212323232133313113313331333132313331323132313331132213121312231   >>    C2221232323213331311331333133313231333132313231333113221312131223   <<    C22212323232133313113313331333132313331323132313331132213121312233   >>      C22212323232133313113313331333132313331323132313331132213121312232   >>