C22212323232133313113313331333132313331323132322113331333133311211   >>    C2221232323213331311331333133313231333132313232211333133313331121   <<    C22212323232133313113313331333132313331323132322113331333133311213   >>      C22212323232133313113313331333132313331323132322113331333133311212   >>