C11111333133313232233133313331333133313331313331333132322333221   >>    C1111133313331323223313331333133313331333131333133313232233322   <<    C11111333133313232233133313331333133313331313331333132322333223   >>      C11111333133313232233133313331333133313331313331333132322333222   >>