C2221333133313331311233132313331333133313232123313331323133313222233133112131   >>    C222133313331333131123313231333133313331323212331333132313331322223313311213   <<    C2221333133313331311233132313331333133313232123313331323133313222233133112133   >>      C2221333133313331311233132313331333133313232123313331323133313222233133112132   >>