# числа в скобках () исключительно exclusive;
# числа в квадратных скобках [] включительно inclusive.
Sample Input 1:
20
Sample Output 1:
True
Sample Input 2:
-20
Sample Output 2:
False
Sample Input 3:
-14
Sample Output 3:
True
Sample Input 4:
14
Sample Output 4:
False
Sample Input 5:
15
Sample Output 5:
True
Sample Input 6:
-15
Sample Output:
False
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