Black Bean Salsa

I'm re-posting this because it's always a hit at parties!

2 cans black beans, drained

1 can corn, drained
1 large tomatoes, diced
1 red onion, diced
2 tbsp. cilantro, chopped
1 avocado, diced
2 Tbs olive oil
4 Tbs lime juice
1 Tbs red wine vinegar
1 tsp salt
1/4 tsp pepper