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=D..D
R=D.D
RR=D..D
=D..D
=D.D
R=D.RD
R=(D..D).
RR=D.RD
R=D...D
=D....D


=
=
=.
R=.R
=.
=.
=.
R=.
R=.
R=.
R=.
R=.
R=.
R=.
=..
=
=
=
=
=
=
RR=R.RR
RR=R.RR
R=R.R
RR=R.RR


R
R


RRR
RRR

RR
RRR
R={}


RRR=()
==



=()

RR
RR={}


.(RR,)
RRR=.(RR,D,D)

R(R,D:D,,
D;D)



RRR=()
RRR[R]



[R]=

R(R,DD,
D;D,
D(D,RRR,D)D)




RR

R={
D:D,
D:RD,
}

RR=()
={}

R,(R)
--
[]=..:()


..:R()
..:R()

R,(R)
..:(,[])





RR(R,,)
,R:(,)

..R
.RR=


R.RR(,DD,.)


R.RR(,.)
.[](.,)
R.R()




RR(R)
R.==DD



..()==
,=R.(R.RRR)

,






RR()
R()
()*--.



RR()
.R=

(.RR)==DD
.RR()
--


..(.R.R,
.R.,
.R.)



RR(R)
R.~=DD
{}


R.R
{}


=.R(R)
,=:R(R.R)

,DD..
R.R..D:\D..






RR(R,)
R.~=DD



R.R
--,
,=.RR(.())

(D:D..)




={
=DRD,
}
.RR(,()
=..:(DR:D)




,=.RR()

,


..(DD,
R.R)

,=.RR(DD)

(D:D..)


(.R(DD))

,=..:R(DR:D,)

..(DR:D,)



)



R()
={}
R,()
={}
R,(.)
.(,.)

.(,.(D%(%)D,.,
.(,D,D)))

.(,DD)



R

R={
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
=.R,
}

R=()
..R()

={
RR=,
RR=,
=R[..R()],
=,
}

=..(D/RRD,)
.
.=
RR()


..(.,.,.)




--.
--@R

={}


.()
RR()

--...
--R,
--.
.()

R=D.D
R=D.RD

--
.
(D:D..
D''('')D)


--R
R=R.(..(),D.RD)
=(R(R,,{RR=}))

R.R(,,)--:

=(.())
(:R())

R=(:R())
R.R(R)

R.RR.R
R.R
R(R,D:\D,
R.R)


R.R
R(R,D:\D,
R.R)



(:())
(.:RRR(.R))

--
.=()
.=
.=
--/

.=
.=.

==DD.RR
.()


.()

--
(.:RR(.R))

..==DD

R,=RR(.)
R
()



,=.RR(DD)

(D:D..())


(.R(DD))


:()



.R()
R.R(,.R)

--...
--R,
--.
.()


--


,=.:R()

RRR(D'.':D..)




..()==
R.R
R(R,D:D,
R(R.R))


R.R
R(R,D:D,
R(R.R))



R,=R.RR()
R
RRR(D'.R'D..
D:D..)


.R=R

R,=R.RR(.,.)
R
RRR(D'.R'D..
D:D..)


.R=R

,=R.R(.,R,R)

RRR(D'.':D..
)


.=

R,=R.RR(.,R,R)

RRR(D'.R':D..
)


.R=R

,=.RRRR()

RRR()--''



--
.=
.R=R
.R=R
.R=R
--/

.:RR(R)

,=RR(.,R)

RRR(D:D..)



,=RR(.)

R(R,D:D..)


.R.()


--R
,=.RR()

RRR(D:D..)



R=.RR()
RR(R,DRD)

.R()
.R()


.R(.)



.()
=.
.RR
.RR=RR()


.RR
.RR=.RR


R.R(,.)

RRR()

..()

R=.RRR()
RR(R,DD,)

.
.RRR=RR()
.RR=.RRR-.RR

R(R,DD)
.()


..()

.RRR=RR()
.RR=.RRR-.RR

--,
.R=



.R()
R.R(,.)

--'(...),
--()
=.
RRR()

..()

R=.RRR()
RR(R,DD,)



.()
.RR==DD
RR.R()--RR,
RR.R()--.()
---

=.
.RRR=RR()
.RR=.RRR-.RR




=.
.RR
.RR=..R()*


.RR
.RR=RR()


R.R(,.)
RR.R()

R=.==DD
R
RRR()


..()

--,R
R
R
R=.RR()

R=.RRR()


RR(R,DD,)

.RRR=RR()
.RR=.RRR-.RR



.()
=.
.RR
.RR=RR()

.RR.RRR
.RRR=.RR
.RR=.RRR-.RR



R.R(,.)

..()

.R=

R=.RR()
,RR:(DD,)
..R
.RR=


.R
R.RR(,DD,.)
R.RR(,.)

=.(..)(.,R)

..()
.R={
R=,
={=DD},
}


R.R()



.R
.RRR=RR()
.RR=.RRR-.RR
.RR=.RRR-.RR

RR()


.R=

.
.RRR=RR()
.RR=.RRR-.RR
.RR=.RRR-.RR

..(,{=DD})


..()

.RRR=RR()
.RR=.RRR-.RR

--,
.R=

...R
R()




.()
--,!
R=RR()

=.
.RR
.RR=R

==DD
.RR.RRR
.RRR=.RR
.RR=.RRR-
.RR



.RR.RRR
.RRR=.RR
.RR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RR
.RR=.RRR-
.RR




R.R(,.)

R=.R
=R.
R={}
R.R=R.R+
[R.R]=R

R.R=R

R.RE
--,`..`
--
--

--
R=[R.R-]
R.,R.=RR()

--
=R.

R.==DD
R.==
.R(R.R)

.RR(R.R)



.RR(R.R,
R.)



,,=R(R)

R(R,D/D,
(R.),D':D,())

.RRR=RR()
.RR=.RRR-.RR
.RR=.RRR-.RR

.()



--,
=R.
E
RR()



R.=R.
R.=R.

--
R(R,D(D,R.R,D):D,
R.,D:D,R.)
,=RR(R.,R.)

R(R,D(:D,
(R.),D:D,(R.),
D):D,())

.RRR=RR()
.RR=.RRR-.RR
.RR=.RRR-.RR

.()


,=R(R.R/,
R.R/,
R.R/)

R(R,D:D,)


--
.RRR=RR()
.RR=.RRR-.RR

---
R=.RRR-R.R
R.R=R

--
--R().
.RR=.RRR-.RR



.R()
=.
.RR
.RR=..R()*


.RRR
.RRR=RR()

.RR.RRR
.RRR=.RR
.RR
.RRR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RR
.RRR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RRR
.RR=.RRR-
.RR



.R
.RR=.RRR-
(.RRR.RRR)

.RR
.RR=.RRR-.RR


.RR
.RR=.RRR-.RR


R.R(,.R)

.R.()
R=.RR()
RR(R,DRD,)
.R.()

.RRRR=RR()
.RRR=.RRRR-.RRR



.R()
=.
.RRR
.RRR=RR()

.RR.RRR
.RRR=.RR
.RR
.RRR
.RRR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RR
.RRR
.RRR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RRR
.RRR
.RR=.RRR-
.RR


.RRR.RRRR
.RRRR=.RRR
.RRR=.RRRR-
.RRR



R.R(,.R)

...R
[]=...R
[]=


R=.RR()
RR(R,DRD,)

[]



.RRRR=RR()
.RRR=.RRRR-.RRR

.R
--(R+R)
--$RR
--().
.RR=.RRRR-(.RRR
.RRR
.RR
.RRR)




.()
=.
.RR
.RR=RR()
==DD
.RR.RRR
.RRR=.RR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RR
.RR=.RRR-
.RR



.RRR.RRRR
.RRRR=.RR
.RRR=.RRRR-
.RRR


.RR.RRR
.RRR=.RR
.RR
.RRR
.RR
.RR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RR
.RRR
.RR
.RR
.RR=.RRR-
.RR


.RR.RRR
.RRR=.RRR
.RR
.RR
.RR=.RRR-
.RR


.RRR.RRRR
.RRRR=.RR
.RR
.RRR=.RRRR-
.RRR




R.R(,.)

=.

R=.RR()
RR(R,DD,)
..()


--,?
--.RRR=RR()
--.RR=.RRR-.RR



.R()
RR.R()
R.R(,.)

=.
.R=

RRR()

.
R=.RRR()
RR:(DD,)
--



RR()



R(,)
R.R(,.R)

=.
.RR=..R()*
.RRR=.RRRRR()


RRR()

={}

[D---D]=.RD*D

..R()==DD
[D---D]=D,,,,,D
[D---D]=D-D

.RRRR=RR()
.RRR=.RRRR-.RRR
.RR=.RRRR-.RR

.()


.()

.RRRR=RR()
.RRR=.RRRR-.RRR
.RR=.RRRR-.RR



.R()
R(D.D,)



--:
.RR=.R


.RR()
=.

.RR
.RR=..R()*


.RRRR
.RRRR=RR()

.RRR.RRRR
.RRRR=.RRRR
.RRR=.RRRR-.RRR


.RR
.RR=.RRRR-.RR



..R[..R]
[..R]=.RR


--,?
--.RRRRR=RR()
--.RRRR=.RRRRR-.RRRR



.R()
R(D.D)



.RR=.RR


.RR()
RRR()

R.R(,.R)

.RR()