What comes after 1-1-2-3-5-8-13-21?

What comes after 1-1-2-3-5-8-13-21?
34 because 1+1 is 2, 1+2 is is 3, 2+3 is 5, 3+5 is 8, so on and so on. to get the next number, you add the 2 preceding numbers. so 13+21 is 34