C1111133313331323223313331333133313331323131211111311331323133313113321   >>    C111113331333132322331333133313331333132313121111131133132313331311332   <<    C1111133313331323223313331333133313331323131211111311331323133313113323   >>      C1111133313331323223313331333133313331323131211111311331323133313113322   >>