def populate_countries_dict(file_path):
    """
    Function to populate dictionary of countries and url numbers.
    """
    
    countries_dict = {}
    
    with open(file_path, 'r') as f:
        for line in f.readlines():
            key_value = line[:-1].split(':')
            countries_dict[key_value[0]] = int(key_value[1])
        
    return countries_dict