C1111233131211111211113313331333133313331333133313331333133313113313222311331   >>    C111123313121111121111331333133313331333133313331333133313331311331322231133   <<    C1111233131211111211113313331333133313331333133313331333133313113313222311333   >>      C1111233131211111211113313331333133313331333133313331333133313113313222311332   >>