C11111333133313232233133313331333132332322121111331333131121131311   >>    C1111133313331323223313331333133313233232212111133133313112113131   <<    C11111333133313232233133313331333132332322121111331333131121131313   >>      C11111333133313232233133313331333132332322121111331333131121131312   >>