# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')
from collections import *
from functools import *
from itertools import *
from heapq import *
import sys,math
input = sys.stdin.readline

N,M,L = map(int,input().split())
A = list(map(int,input().split()))

X = defaultdict(lambda:False)
X[L]=True
for i in range(N):
    a = A[i]
    Y = []
    for k in X.keys():
        
        tmp = (k+a)//2
        Y.append(tmp)
    for y in Y:
        X[y]=True
if X[M]:
    print('Yes')
else:
    print('No')