C132233133112121111331333133313331323331333133313231323223232221   >>    C13223313311212111133133313331333132333133313331323132322323222   <<    C132233133112121111331333133313331323331333133313231323223232223   >>      C132233133112121111331333133313331323331333133313231323223232222   >>