from math import floor

import sys
sys.setrecursionlimit(10**9)

S = int(input())

T = []
def f(X):
    if X == 0 and len(T) <= 15:
        print(len(T))
        print(*T)
        exit()
    
    if len(T) > 15:
        return False
    
    a = floor(X**0.5)
    for i in range(a, 0, -1):
        T.append(i*i)
        if f(X - i*i):
            T.pop()
            for j in range(a-3, 0, -3):
                T.append(j*j)
                f(X - j*j)
                T.pop()
        T.pop()
    
f(S)