print("Enter the values of the list separated by a space: ")
s = list(map(int, input(). split()))
a = int(input('a = '))
b = int(input('b = '))
print("Number of elements:", len(s))
print("Arithmetic mean: ", round(sum(s) / len(s), 2))
print("Sum of all values: ", sum(s))
print("Number of null elements: ", s. count(0))
print("Occurrences of %d: %d" % (a, s. count(a)))
print("(max ; min) = (%d ; %d)" % (max(s), min(s)))
print("Number of positive elements: ", len([num for num in s if num > 0]))
print("Number of negative elements: ", len([num for num in s if num < 0]))
print("Number of elements greater than %d : %d" %
(b, len([num for num in s if num > b])))