def day_month(m):
    """
    change date at the end of month
    """
    if(s=="02"):
        return 28
    elif(m=="04" or m=="06" or m=="09" or m=="11"):
        return 30
    else:
        return 31

    change date at the end of month
    
recipes/Python/578036_make_some_file_named/recipe-578036.py