n, x, y = map(int, input().split())
r = list(map(int, input().split()))
r.append(0)
L = max(0, (r[0]-2*sum(r[1:])))*max(0, (r[0]-2*sum(r[1:])))
R = (r[0]+2*sum(r[1:]))*(r[0]+2*sum(r[1:]))

if L <= x*x+y*y <= R: print('Yes')
else: print('No')