from collections import Counter


def main():
    N = int(input())
    lst_a = list(map(int, input().split()))

    cnt_a = Counter(lst_a)

    if len(cnt_a) > 3:
        print("No")
        exit()
    
    if len(cnt_a) == 1:
        print("Yes" if lst_a[0] == 0 else "No")
        exit()
    
    if N % 3:
        print("No")
        exit()
    
    if len(cnt_a) == 2:
        if cnt_a[0] != N//3:
            print("No")
        else:
            print("Yes")
    else:
        if any(v != N//3 for v in C.values()):
            print("No")
        else:
            x, y, z = list(cnt_a)
            print("Yes" if x ^ y ^ z == 0 else "No")


if __name__ == "__main__":
    main()