C2221333133313331311233132313331333133313232123313331323222311211   >>    C222133313331333131123313231333133313331323212331333132322231121   <<    C2221333133313331311233132313331333133313232123313331323222311213   >>      C2221333133313331311233132313331333133313232123313331323222311212   >>