from collections import deque

bufio_scanner = []


def main():
    a = int(fmt_scan())
    s = 0
    ans = "NO"
    q = deque()
    for i in range(int(a / 3) + 10, 0, -1):
        q.append(i)
        s += i
        if s > a:
            s -= q.popleft()
        if s == a:
            ans = "YES"
            break
    print(ans)


def fmt_scan() -> str:
    sc = bufio_scanner
    if len(sc) == 0:
        for v in input().split()[::-1]:
            sc.append(v)
    res = sc[-1]
    sc.pop()
    return res


main()