CCH_3291-2CCH_3291CCH_3301-2CCH_3301CCH_3302-2CCH_3302CCH_3309-2CCH_3309CCH_3310-2CCH_3310CCH_3311-2CCH_3311CCH_3314-2CCH_3314CCH_3315-2CCH_3315CCH_3317-2CCH_3317CCH_3319-2CCH_3319