#!/usr/bin/python3
from decimal import Decimal
from itertools import count

def calc(d):
    return int((-1 + (1+4*d)**.5) / 2)

def correct(d):
    return int((-1 + (1+4*Decimal(str(d))).sqrt()) / 2)

cnt = 0
for k in count(912345678):
    d = k*k + k - 1
    if not 1 <= d <= 10**18:
        continue
    if calc(d) != correct(d):
        print(d)
        cnt += 1
        if cnt == 100000:
            break