Задача 2

from random import randint

A =  [randint(0, 100) for i in range(25)]

print(A) #для проверки

count = 0

for i in range(len(A) - 1):
    if (A[i] - 5) % 9 == 0 or (A[i + 1] - 5) % 9 == 0:
        count += 1
print(count)