15, 1, 32, 0, 12, 10, 4, 30, 31, 7, 20, 22, 18, 11, 17, 23, 26, 24, 16, 29, 19, 8, 28, 27, 9, 14, 25, 13, 3, 6, 2, 5. Is "21" in the previous list? 
Provide no explanation, directly answer with only "Yes." or "No."