C11111333133313232233133313331333131133132233133313331311211331333132332221   >>    C1111133313331323223313331333133313113313223313331333131121133133313233222   <<    C11111333133313232233133313331333131133132233133313331311211331333132332223   >>      C11111333133313232233133313331333131133132233133313331311211331333132332222   >>