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- # Задание №1
- # [2, 2, 2]
- # Задание №2
- # [1, 2, 2]
- # Задание №3
- n = int(input())
- mas = []
- for i in range(n):
- mas.append(int(input()))
- ans = sum(mas)/len(mas)
- print(ans)
- # Задание №4
- n = int(input())
- m = int(input())
- mas_2 = []
- for i in range(n):
- mas_2.append(int(input()))
- print(mas_2[m])
- # Задание №5
- n = int(input())
- mas_3 = []
- summ = 0
- for i in range(n):
- mas_3.append(int(input()))
- if i % 2 == 0:
- summ += mas_3[i]
- print(summ)
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