C111123313331323113313331333133313331323131211113313331322331232111221   >>    C11112331333132311331333133313331333132313121111331333132233123211122   <<    C111123313331323113313331333133313331323131211113313331322331232111223   >>      C111123313331323113313331333133313331323131211113313331322331232111222   >>