N,X,Y = map(int,input().split())
R = list(map(int,input().split()))
if N==1:
    if R[0]**2==X**2+Y**2:
        ans = "Yes" 
    else:
        ans = "No"    
elif (2*sum(R)-R[0])**2>=X**2+Y**2:
    ans = "Yes"
else:    
    ans = "No"
print(ans)