import sys
input = sys.stdin.readline
from collections import *

N, X, Y = map(int, input().split())
R = list(map(int, input().split()))

if N==1:
    if X**2+Y**2==R*R:
        print('Yes')
    else:
        print('No')
else:
    S = 2*sum(R)
    
    if X**2+Y**2<=S*S:
        print('Yes')
    else:
        print('No')