nums = [10, 20, 30]
nums_bak = nums.copy()
nums[0] = 100

print(nums)
print(nums_bak)

eng_members = [“Taro”, “Jiro”, “Saburo”]
math_members = [“Jiro”, “Saburo”, “Shiro”]

eng_members = set(eng_members)
math_members = set(math_members)

print(eng_members – math_members)
print(math_members – eng_members)

members = {“Taro”, “Jiro”, “Saburo”}

frozen_members = frozenset(members)
frozen_members.add(“Goro”)

scores = {“math”: 62, “english”: 91, “physics”: 84}

for key, value in scores.items():
print(f”{key:8}{value:3}”)

scores = [62, 91, 84]

scores = {“math”: 62, “english”: 91, “physics”: 84}

popped_value = scores.pop(“english”)

print(scores)
print(popped_value)

birthday = [2011,11,27]
print(“-“.join([str(n) for n in birthday]))

scores = [10, 20, 30, 20, 40]
tokyo = (“JPY”, 36, 140)
name = “Taro Yamada”

replaced_string = name.replace(“Taro”, “Jiro”)
upper_string = name.upper()
print(replaced_string)
print(upper_string)

tokyo = (“JPY”, 36, 140)

currency, *_ = tokyo
print(currency)

tokyo = “JPY”, 36, 140

tokyo = list(tokyo)

tokyo[0] = “YEN”
tokyo = tuple(tokyo)

print(tokyo)
print(tokyo[0])

prices = [100, 200, 150, 200, 100]

prices_with_tax = []

for price in prices:

if price != 200:

prices_with_tax.append(price * 1.1)

prices_with_tax = [price * 1.1 for price in prices if price != 200]

print(prices_with_tax)