C111123313331323113313331333133313331323131211113313331313331322321   >>    C11112331333132311331333133313331333132313121111331333131333132232   <<    C111123313331323113313331333133313331323131211113313331313331322323   >>      C111123313331323113313331333133313331323131211113313331313331322322   >>