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13
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c
i
n
g
a
l
go
ri
t
hm
s
e
xi
s
t
i
n
g
i
n
c
l
o
ud
a
na
l
y
s
t
t
o
s
h
ow
t
h
e
i
m
po
rt
a
n
c
e
of
s
e
l
e
c
t
i
o
n
of
t
h
e
l
o
a
d
b
a
l
a
n
c
e
d
a
l
go
ri
t
hm
o
f
a
w
e
b
a
ppl
i
c
a
t
i
o
n,
w
hi
c
h
w
i
l
l
b
e
h
o
s
t
e
d
i
n
a
c
l
o
ud
e
n
v
i
r
o
nm
e
nt
i
n
s
e
v
e
r
a
l
ge
o
gra
p
h
i
c
a
l
a
r
e
a
s
,
b
e
fo
r
e
c
h
o
o
s
i
n
g
t
h
e
c
l
o
ud
p
r
o
v
i
de
r
2.
LO
A
D
B
A
LA
N
C
I
N
G
A
L
G
O
R
I
TH
M
S
L
o
a
d
b
a
l
a
n
c
i
n
g
i
s
a
n
i
m
po
r
t
a
n
t
i
s
s
ue
in
n
e
t
w
o
r
ks
.
L
o
a
d
b
a
l
a
n
c
i
n
g
o
f
r
e
que
s
t
di
s
t
ri
b
ut
e
s
w
o
r
kl
o
a
ds
a
c
r
o
s
s
m
ul
t
i
p
l
e
c
o
m
put
i
n
g
r
e
s
o
ur
c
e
s
,
s
uc
h
a
s
c
o
m
put
e
r
s
,
c
o
m
put
e
r
c
l
us
t
e
r,
di
s
k
d
r
i
v
e
s
,
n
e
t
w
o
r
k
l
i
n
ks
,
CP
U
.
T
h
e
l
o
a
d
can
be
b
a
l
a
n
c
e
d
dy
n
a
m
i
c
a
l
l
y
o
r
s
t
a
t
i
c
a
l
l
y
.
I
n
s
o
m
e
s
i
t
ua
t
i
o
n
s
,
t
h
e
l
o
a
d
o
n
a
pa
rt
i
c
ul
a
r
n
o
d
e
c
a
nn
o
t
b
e
f
o
r
e
s
e
e
n
.
T
hi
s
r
e
m
a
i
n
s
a
ke
y
i
s
s
ue
s
pe
c
i
f
i
c
a
l
l
y
i
n
di
s
t
ri
b
ut
e
d
n
e
t
w
o
r
ks
.
L
o
a
d
B
a
l
a
n
c
i
ngi
s
a
m
e
t
h
o
d
of
di
s
pe
n
s
i
ng
t
h
e
r
e
que
s
t
s
t
o
m
a
n
y
s
e
r
v
e
r
s
o
r
r
e
s
o
ur
c
e
s
.
T
h
i
s
h
e
l
ps
i
n
e
nha
n
c
i
n
g
t
h
e
pe
r
f
o
r
m
a
n
c
e
,
e
ff
i
c
i
e
n
t
ut
i
l
i
z
a
t
i
o
n
o
f
r
e
s
o
ur
c
e
s
,
a
v
o
i
ds
o
ve
r
l
o
a
di
n
g
,
r
e
duc
e
d
r
e
s
po
n
s
e
t
i
m
e
a
n
d
i
m
p
r
o
v
e
d
t
hr
o
ughput
[
1
4
].
T
he
p
r
o
b
l
e
m
of
l
o
a
d
b
a
l
a
n
c
i
n
g
as
a
pe
r
s
i
s
t
i
n
g
o
l
d
p
r
o
b
l
e
m
;
as
a
r
e
s
ul
t
,
m
a
n
y
a
pp
r
o
a
c
h
e
s
ha
v
e
b
e
e
n
pr
o
po
s
e
d
to
s
o
l
ve
t
hi
s
i
s
s
ue
.
a)
R
ound
R
obi
n
A
l
gor
i
t
hm
[1
5
]
:
T
h
e
a
l
go
r
i
t
h
m
w
o
r
ks
on
ra
n
do
m
s
e
l
e
c
t
i
o
n
of
t
h
e
v
i
r
t
u
a
l
m
a
c
h
i
n
e
s
.
T
h
e
da
t
a
c
e
n
t
e
r
c
o
n
t
r
o
l
l
e
r
a
s
s
i
g
n
s
t
h
e
r
e
que
s
t
s
to
a
l
i
s
t
of
V
M
s
on
a
r
o
t
a
t
i
n
g
b
a
s
i
s
.
T
h
e
f
i
r
s
t
r
e
que
s
t
is
a
l
l
o
c
a
t
e
d
to
a
VM
pi
c
ke
d
r
a
ndo
m
l
y
f
r
o
m
t
h
e
g
r
o
up
a
n
d
t
h
e
n
t
h
e
D
a
t
a
Ce
n
t
e
r
c
o
nt
r
o
l
l
e
r
a
s
s
i
g
n
s
t
h
e
r
e
que
s
t
s
in
a
c
i
r
c
ul
a
r
o
r
de
r.
O
n
c
e
t
h
e
VM
is
a
s
s
i
g
n
e
d
t
h
e
r
e
que
s
t
,
t
h
e
VM
m
o
v
e
s
to
t
h
e
e
n
d
of
t
h
e
l
i
s
t
[
1
6
].
b)
E
qual
l
y
Spr
e
a
d
Cur
r
e
n
t
E
x
e
c
u
t
i
on
:
T
hi
s
a
l
go
ri
t
hm
p
r
o
c
e
s
s
e
s
to
a
dd
r
e
s
s
pri
o
r
i
t
i
e
s
[1
7
].
In
o
t
h
e
r
w
o
r
ds
,
t
h
e
a
l
go
r
i
t
h
m
di
s
pe
n
s
e
s
t
h
e
l
o
a
d
r
a
ndo
m
l
y
by
a
n
a
l
y
z
i
ng
t
he
vo
l
um
e
a
n
d
r
e
l
o
c
a
t
i
n
g
t
h
e
l
o
a
d
to
t
h
o
s
e
v
i
r
t
u
a
l
m
a
c
h
i
n
e
s
t
ha
t
a
r
e
l
i
g
ht
l
y
l
o
a
de
d
or
n
e
e
d
to
h
a
n
d
l
e
t
h
i
s
t
a
s
k
e
a
s
i
l
y
,
n
e
e
d
l
e
s
s
time
to
c
o
m
pl
e
t
e
t
h
e
t
a
s
k
a
nd
m
a
xi
m
i
z
e
t
hr
o
ughput
.
T
h
e
t
a
s
ks
a
r
e
t
r
a
n
s
f
e
rr
e
d
to
t
h
e
VM
m
a
n
a
ge
r,
w
h
i
c
h
m
a
i
nt
a
i
n
s
a
s
e
t
of
t
a
s
ks
a
n
d
t
h
e
i
r
n
e
c
e
s
s
a
r
y
r
e
s
o
ur
c
e
s
.
c)
T
hr
ot
t
l
e
d
l
oad
bal
a
nc
e
r
:
T
hi
s
a
l
go
r
i
t
hm
is
e
n
t
i
r
e
l
y
b
a
s
e
d
on
t
h
e
v
i
r
t
u
a
l
m
a
c
hi
n
e
.
w
i
t
h
t
hi
s
a
l
go
ri
t
hm
,
t
h
e
us
e
r
f
i
r
s
t
c
o
m
m
u
n
i
c
a
t
e
s
w
i
t
h
t
h
e
l
o
a
d
b
a
l
a
n
c
e
r
to
f
i
nd
a
s
ui
t
a
b
l
e
v
i
r
t
u
a
l
m
a
c
h
i
n
e
for
t
h
e
r
e
qui
r
e
d
o
pe
r
a
t
i
o
n
[1
8
].
If
a
s
ui
t
a
b
l
e
m
a
c
h
i
n
e
is
i
de
n
t
i
f
i
e
d,
t
h
e
l
o
a
d
b
a
l
a
n
c
e
r
a
c
c
e
pt
s
t
h
e
c
l
i
e
n
t
r
e
que
s
t
a
nd
a
s
s
i
g
n
s
t
h
a
t
v
i
r
t
ua
l
m
a
c
h
i
n
e
to
t
h
e
c
l
i
e
n
t
.
O
t
h
e
r
w
i
s
e
,
t
h
e
r
e
qu
e
s
t
is
que
ue
d.
T
h
e
ob
j
e
c
t
i
ve
v
e
r
a
l
ge
o
gr
a
p
hi
c
a
r
e
a
s
,
by
a
s
s
e
s
s
i
n
g,
w
i
t
h
Cl
o
udA
na
l
y
s
t
s
i
m
ul
a
t
o
r,
t
h
e
r
e
s
po
n
s
e
t
i
m
e
a
n
d
D
a
t
a
Ce
nt
e
r
p
r
o
c
e
s
s
i
n
g
of
o
ur
s
t
udy
is
to
s
h
ow
t
h
e
s
i
m
pl
i
c
i
t
y
of
us
i
n
g
c
l
o
ud
t
e
c
h
n
o
l
o
g
y
to
h
o
s
t
a
l
a
r
ge
-
s
c
a
l
e
w
e
b
a
ppl
i
c
a
t
i
o
n
in
se
t
i
m
e
.
A
n
d
t
h
e
n
m
a
ke
de
c
i
s
i
o
n
of
t
h
e
b
e
s
t
l
o
a
d
b
a
l
a
n
c
e
d
a
l
go
r
i
t
hm
.
L
o
a
d
b
a
l
a
n
c
i
n
g
is
a
c
ruc
i
a
l
p
r
o
m
i
n
e
n
c
e
in
c
l
o
ud
c
o
m
put
i
ng,
e
s
pe
c
i
a
l
l
y
t
h
e
h
y
b
r
i
d
c
l
o
uds
in
o
r
de
r
to
c
o
p
e
w
i
t
h
t
h
e
s
e
r
v
i
c
e
l
e
ve
l
a
g
r
e
e
m
e
n
t
(S
L
A
)
a
n
d
t
h
e
qu
a
l
i
t
y
of
s
e
r
v
i
c
e
(Q
oS
)
[
1
9
]
.
A
n
y
a
l
go
ri
t
hm
for
l
o
a
d
b
a
l
a
n
c
i
n
g
is
de
s
i
g
n
e
d,
de
pe
n
d
i
n
g
on
t
h
e
s
t
a
t
e
or
b
e
ha
v
i
o
r
of
t
h
e
s
y
s
t
e
m
,
w
h
i
c
h
m
a
y
be
s
t
a
t
i
c
or
dy
n
a
m
i
c
[
20
].
a)
St
at
i
c
al
gor
i
t
hm
s
[
2
1
]
:
T
h
e
s
e
a
l
go
ri
t
hm
s
do
n
o
t
de
pe
n
d
on
t
h
e
c
urr
e
n
t
s
t
a
t
e
of
t
h
e
s
y
s
t
e
m
a
n
d
h
a
v
e
a
pri
o
r
k
n
o
w
l
e
dge
of
s
y
s
t
e
m
r
e
s
o
ur
c
e
s
a
nd
de
t
a
i
l
s
of
all
t
h
e
t
a
s
ks
of
an
a
ppl
i
c
a
t
i
o
n.
T
h
e
s
e
t
y
p
e
s
of
a
l
go
ri
t
hm
s
f
a
c
e
a
m
a
j
o
r
d
i
s
a
dv
a
n
t
a
ge
in
t
h
e
e
v
e
n
t
of
a
s
u
dde
n
f
a
i
l
u
r
e
of
s
y
s
t
e
m
r
e
s
o
ur
c
e
s
a
nd
t
a
s
ks
.
b)
D
y
nam
i
c
a
l
gor
i
t
hm
s
[
2
2
]
:
T
h
e
s
e
a
l
go
r
i
t
h
m
s
m
a
ke
de
c
i
s
i
o
n
s
a
b
o
ut
l
o
a
d
b
a
l
a
n
c
i
n
g
b
a
s
e
d
on
t
h
e
c
urr
e
nt
s
t
a
t
e
of
t
h
e
s
y
s
t
e
m
a
n
d
do
n
o
t
r
e
qui
r
e
a
n
y
pr
i
o
r
k
n
o
w
l
e
dge
of
t
h
e
s
y
s
t
e
m
.
T
h
i
s
a
pp
r
o
a
c
h
is
an
i
m
p
r
o
v
e
m
e
n
t
o
ve
r
t
h
e
s
t
a
t
i
c
.
T
h
e
a
l
go
r
i
t
h
m
s
in
t
hi
s
c
a
t
e
g
o
r
y
a
r
e
c
o
n
s
i
de
r
e
d
c
o
m
pl
e
x,
b
ut
t
h
e
y
h
a
v
e
b
e
t
t
e
r
f
a
ul
t
t
o
l
e
r
a
n
c
e
a
nd
b
e
t
t
e
r
pe
r
f
o
r
m
a
n
c
e
.
3.
A
C
O
M
P
A
R
A
TI
V
E
S
I
M
U
LA
TI
O
N
OF
L
O
A
D
B
A
LA
N
C
I
N
G
A
L
G
O
R
I
T
H
M
S
F
O
R
A
S
O
C
I
A
L
N
ETWO
R
K
A
P
P
LI
C
A
TI
O
N
In
t
hi
s
c
a
s
e
s
t
ud
y
t
h
a
t
is
m
a
de
by
t
h
e
s
i
m
ul
a
t
o
r
Cl
o
ud
A
n
a
l
y
s
t
[
2
3
,
2
4
]
we
w
o
r
ke
d
w
i
t
h
da
t
a
f
r
o
m
s
oc
i
a
l
n
e
t
w
o
r
k
a
ppl
i
c
a
t
i
o
n
"
F
a
c
e
boo
k"
on
w
h
i
c
h
we
w
i
l
l
c
a
l
c
ul
a
t
e
t
h
e
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D
a
t
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Ce
nt
e
r
p
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s
s
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g
t
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m
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o
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a
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we
us
e
d
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r
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l
s
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na
r
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We
w
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w
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d
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f
o
un
d
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w
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h
a
s
c
a
l
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h
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pl
i
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is
a
c
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s
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r
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m
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r
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f
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3.
1
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gu
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th
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S
i
m
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B
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d
on
t
h
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m
a
t
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we
s
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t
for
t
h
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num
b
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c
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up
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pe
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h
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num
b
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c
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pe
a
k
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s
to
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pe
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k
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m
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us
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s
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de
t
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s
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t
t
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gs
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d
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T
a
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n
d
we
a
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A
m
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r
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c
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s
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u
r
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pe
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O
c
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ni
a
us
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f
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m
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ut
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s
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s
t
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t
hr
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m
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f
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t
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r
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que
s
t
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ve
r
y
10
m
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s
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h
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us
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s
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t
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is
100b
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c
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n
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Evaluation Warning : The document was created with Spire.PDF for Python.
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2
5
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a
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l
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1.
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s
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r
B
a
s
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r
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r
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r
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d
in
our
c
a
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t
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.
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h
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s
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to
m
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t
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is
us
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a
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b
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In
t
hi
s
m
o
de
l
,
all
r
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s
t
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of
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us
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r
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a
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o
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t
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r.
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d
a
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40
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m
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F
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s
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t
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2.
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h
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c
on
d
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s
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D
a
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n
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14]
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l
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018
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[
15]
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l
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e
,
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.
M
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&
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o
s
t
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r
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I
.
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.
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21]
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-
418
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