C111123313331323113313331333133313331323133113313331333133313332332313111   >>    C11112331333132311331333133313331333132313311331333133313331333233231311   <<    C111123313331323113313331333133313331323133113313331333133313332332313113   >>      C111123313331323113313331333133313331323133113313331333133313332332313112   >>