C11111333133313232233133313331333132332322121111331333223323131   >>    C1111133313331323223313331333133313233232212111133133322332313   <<    C11111333133313232233133313331333132332322121111331333223323133   >>      C11111333133313232233133313331333132332322121111331333223323132   >>