C11111333133313232233133313331333133313231312111133221211211311   >>    C1111133313331323223313331333133313331323131211113322121121131   <<    C11111333133313232233133313331333133313231312111133221211211313   >>      C11111333133313232233133313331333133313231312111133221211211312   >>