import re
def extract_and_sum_numbers(file_path):
    with open(file_path, 'r') as file:
        content = file.read()
        numbers = re.findall(r'\b\d+\b', content)
        numbers = [int(num) for num in numbers]
        return sum(numbers)

def extract_dates(file_path):
    with open(file_path, 'r') as file:
        content = file.read()
        dates = re.findall(r'\b(?:\d{1,2}[-/])?(?:\d{1,2}[-/])?\d{2,4}\b', content)
        return dates

def main():
    file_path = 'content.txt'
    
    try:
        with open(file_path, 'r'):
            pass
    except FileNotFoundError:
        print(f"The file '{file_path}' does not exist.")
        return
    
    total_sum = extract_and_sum_numbers(file_path)
    print(f"Sum of all numbers in the file: {total_sum}")
    
    dates = extract_dates(file_path)
    print("Extracted dates from the file:")
    for date in dates:
        print(date)

if __name__ == "__main__":
    main()