Buggy python submission (verdict: Time Limit Exceeded):
import glob
import numpy as np


# 問題ごとのディレクトリのトップからの相対パス
REL_PATH = 'ABC\\134\\D'

# テスト用ファイル置き場のトップ
TOP_PATH = 'C:\\AtCoder'

class Common:

    problem = []
    index = 0

    def __init__(self, rel_path):
        self.rel_path = rel_path

    def initialize(self, path):
        file = open(path)
        self.problem = file.readlines()
        self.index = 0
        return

    def input_data(self):
        try:
            IS_TEST
            self.index += 1
            return self.problem[self.index-1]

        except NameError:
            return input()

    def resolve(self):
        pass

    def exec_resolve(self):
        try:
            IS_TEST
            for path in glob.glob(TOP_PATH + '\\' + self.rel_path + '/*.txt'):
                print("Test: " + path)
                self.initialize(path)
                self.resolve()
                print("\n\n")
        except NameError:
            self.resolve()


class D(Common):

    def resolve(self):

        box_num = int(self.input_data())
        remain = [int(i) for i in self.input_data().split()]

        boxes = np.zeros(box_num, dtype=np.int)
        for box in range(box_num, 0, -1):
            ball_num = 0
            for j in range(box-1, box_num, box):
                ball_num += boxes[j]
            if ball_num % 2 != remain[box-1]:
                boxes[box-1] = 1

        print(str(np.sum(boxes)))
        for i in range(box_num):
            if boxes[i] == 1:
                print(str(i+1), end=" ")


solver = D(REL_PATH)
solver.exec_resolve()


Fixed submission:
import glob
import numpy as np


# 問題ごとのディレクトリのトップからの相対パス
REL_PATH = 'ABC\\134\\D'

# テスト用ファイル置き場のトップ
TOP_PATH = 'C:\\AtCoder'

class Common:

    problem = []
    index = 0

    def __init__(self, rel_path):
        self.rel_path = rel_path

    def initialize(self, path):
        file = open(path)
        self.problem = file.readlines()
        self.index = 0
        return

    def input_data(self):
        try:
            IS_TEST
            self.index += 1
            return self.problem[self.index-1]

        except NameError:
            return input()

    def resolve(self):
        pass

    def exec_resolve(self):
        try:
            IS_TEST
            for path in glob.glob(TOP_PATH + '\\' + self.rel_path + '/*.txt'):
                print("Test: " + path)
                self.initialize(path)
                self.resolve()
                print("\n\n")
        except NameError:
            self.resolve()


class D(Common):

    def resolve(self):

        box_num = int(self.input_data())
        remain = [int(i) for i in self.input_data().split()]

        boxes = [0 for i in range(box_num)]
        ball_num = 0

        for box in range(box_num, 0, -1):
            ball_num = 0
            for j in range(box-1, box_num, box):
                ball_num += boxes[j]
            if ball_num % 2 != remain[box-1]:
                boxes[box-1] = 1
                ball_num += 1

        print(str(ball_num))
        for i in range(box_num):
            if boxes[i] == 1:
                print(str(i+1), end=" ")


solver = D(REL_PATH)
solver.exec_resolve()

Buggy python submission (verdict: Time Limit Exceeded):
import glob
import numpy as np



# 問題ごとのディレクトリのトップからの相対パス
REL_PATH = 'ABC\\134\\D'

# テスト用ファイル置き場のトップ
TOP_PATH = 'C:\\AtCoder'

class Common:

    problem = []
    index = 0

    def __init__(self, rel_path):
        self.rel_path = rel_path

    def initialize(self, path):
        file = open(path)
        self.problem = file.readlines()
        self.index = 0
        return

    def input_data(self):
        try:
            IS_TEST
            self.index += 1
            return self.problem[self.index-1]

        except NameError:
            return input()

    def resolve(self):
        pass

    def exec_resolve(self):
        try:
            IS_TEST
            for path in glob.glob(TOP_PATH + '\\' + self.rel_path + '/*.txt'):
                print("Test: " + path)
                self.initialize(path)
                self.resolve()
                print("\n\n")
        except NameError:
            self.resolve()


class D(Common):

    def resolve(self):

        box_num = int(self.input_data())
        remain = [int(i) for i in self.input_data().split()]

        boxes = np.zeros(box_num, dtype=np.int)
        for box in range(box_num, 0, -1):
            ball_num = np.sum(boxes[box-1::box])
            if ball_num % 2 != remain[box-1]:
                boxes[box-1] = 1

        print(str(np.sum(boxes)))
        for i in range(box_num):
            if boxes[i] == 1:
                print(str(i+1), end=" ")


solver = D(REL_PATH)
solver.exec_resolve()


Fixed submission:
import glob
import numpy as np


# 問題ごとのディレクトリのトップからの相対パス
REL_PATH = 'ABC\\134\\D'

# テスト用ファイル置き場のトップ
TOP_PATH = 'C:\\AtCoder'

class Common:

    problem = []
    index = 0

    def __init__(self, rel_path):
        self.rel_path = rel_path

    def initialize(self, path):
        file = open(path)
        self.problem = file.readlines()
        self.index = 0
        return

    def input_data(self):
        try:
            IS_TEST
            self.index += 1
            return self.problem[self.index-1]

        except NameError:
            return input()

    def resolve(self):
        pass

    def exec_resolve(self):
        try:
            IS_TEST
            for path in glob.glob(TOP_PATH + '\\' + self.rel_path + '/*.txt'):
                print("Test: " + path)
                self.initialize(path)
                self.resolve()
                print("\n\n")
        except NameError:
            self.resolve()


class D(Common):

    def resolve(self):

        box_num = int(self.input_data())
        remain = [int(i) for i in self.input_data().split()]

        boxes = [0 for i in range(box_num)]
        ball_num = 0

        for box in range(box_num, 0, -1):
            ball_num = 0
            for j in range(box-1, box_num, box):
                ball_num += boxes[j]
            if ball_num % 2 != remain[box-1]:
                boxes[box-1] = 1
                ball_num += 1

        print(str(ball_num))
        for i in range(box_num):
            if boxes[i] == 1:
                print(str(i+1), end=" ")


solver = D(REL_PATH)
solver.exec_resolve()