n
u
m
b
e
r
o
f
s
m
a
l
l
c
i
r
c
l
e
s
3
4
5
6
7
8
9
1
0
w
i
d
t
h
o
f
b
l
u
e
a
r
c
h
w
i
d
t
h
o
f
b
r
o
w
n
c
i
r
c
l
e
w
i
d
t
h
o
f
g
r
a
y
c
i
r
c
l
e
s
r
o
t
a
t
e