import itertools
N,M,L = map(int, input().split())
A = list(map(int, input().split())) 
DP = [0]*1001
DP[L]=1
for a in A:
    NDP = list(DP)
    for i in range(1001):
        if DP[i]>0:
            NDP[(i+a)//2]=1
    DP = NDP
if DP[M]:
    print('Yes')
else:
    print('No')