C1111133313331323223313331333133313233231311211331333133313233123331   >>    C111113331333132322331333133313331323323131121133133313331323312333   <<    C1111133313331323223313331333133313233231311211331333133313233123333   >>      C1111133313331323223313331333133313233231311211331333133313233123332   >>