from typing import List, Tuple, Callable, TypeVar, Optional
import sys
import itertools
import heapq
import bisect
import math
from collections import deque, defaultdict
from functools import lru_cache, cmp_to_key

input = sys.stdin.readline

if __file__ != 'prog.py':
    sys.setrecursionlimit(10 ** 6)


def readints(): return map(int, input().split())
def readlist(): return list(readints())
def readstr(): return input()[:-1]


N, M, L = readints()
A = readlist()

K = 1000
dp = [False] * (K + 10)
dp[L] = True
for a in A:
    ndp = [False] * (K + 10)
    for j in range(K + 1):
        if dp[j]:
            nxt = (j + a) >> 1
            ndp[nxt] = True
        ndp[j] |= dp[j]
    dp = ndp
print('Yes' if dp[M] else 'No')