C11111333133313232233133313331333132332313112113313331323113312121   >>    C1111133313331323223313331333133313233231311211331333132311331212   <<    C11111333133313232233133313331333132332313112113313331323113312123   >>      C11111333133313232233133313331333132332313112113313331323113312122   >>