C2221333133313331311233132313331333133313331322231333133313331323232211   >>    C222133313331333131123313231333133313331333132223133313331333132323221   <<    C2221333133313331311233132313331333133313331322231333133313331323232213   >>      C2221333133313331311233132313331333133313331322231333133313331323232212   >>