C132233133112121111331333133313331323133313331313331311233132322221   >>    C13223313311212111133133313331333132313331333131333131123313232222   <<    C132233133112121111331333133313331323133313331313331311233132322223   >>      C132233133112121111331333133313331323133313331313331311233132322222   >>