func is_uruu( n :int ) :bool
    if ( n % 400 = 0 )
        ret true
    elif ( n % 100 = 0 )
        ret false
    elif ( n % 4 = 0 )
        ret true
    end if
    ret false
end func

func main()
    var n :int :: cui@inputInt()
    do cui@print( @is_uruu( n ) ?( "Yes", "No" ) )
end func