def print_squares_to_number(number):
    """From a single positive int prints a table of all int's
    and their squares from 1 up to and including number."""
    if number < 1:
        print("ERROR: number must be at least 1")
    else:
        for number in range(1, number + 1):
            print(number, "*", number, "=", number * number)


print_squares_to_number(5)