Peel and seed papaya and shred it. Put in a bowl. Crush garlic with a pestle, then add long beans and tomatoes and pound a few times to release juices. Add the chillies and crush lightly to release the heat. In a separate cup dissolve the sugar in the lime juice and fish sauce. Mix all ingredients together now and toss to mix. Serve in a shallow bowl and top with garnish. Remember: Do not blend but use mortar and pestle for the salad. Do not add salt, the fish sauce or soy sauce has enough salt