N, = map(int, input().split())
E = list(map(int, input().split()))
for s in range(3**N):
    A = [0]*3
    for i in range(N):
        s, m = divmod(s, 3)
        A[m] += E[i]
    if A[0] == A[1] and A[1] == A[2]:
        print("Yes")
        import sys
        sys.exit()
print("No")