C313212111113331323312111133133313331333132233133313133311233131232311   >>    C31321211111333132331211113313331333133313223313331313331123313123231   <<    C313212111113331323312111133133313331333132233133313133311233131232313   >>      C313212111113331323312111133133313331333132233133313133311233131232312   >>