C1111233131211111211113313331333133313331322322331323131121131322321   >>    C111123313121111121111331333133313331333132232233132313112113132232   <<    C1111233131211111211113313331333133313331322322331323131121131322323   >>      C1111233131211111211113313331333133313331322322331323131121131322322   >>