S = int(input())

ans = []
while S:
    OK = 1
    NG = 10**10
    while NG - OK >= 2:
        MID = (OK+NG)//2
        if MID*MID <= S:
            OK = MID
        else:
            NG = MID
    ans.append(OK*OK)
    S -= OK*OK
print(len(ans))
print(*ans)