C22212323232133313113313331333132313331323132313331132212222121111   >>    C2221232323213331311331333133313231333132313231333113221222212111   <<    C22212323232133313113313331333132313331323132313331132212222121113   >>      C22212323232133313113313331333132313331323132313331132212222121112   >>