m
.
c
.
d
.
(
12
,
10
)
=
____________________
m
.
c
.
d
.
(
15
,
20
)
=
____________________
m
.
c
.
d
.
(
12
,
20
)
=
____________________
m
.
c
.
d
.
(
20
,
30
)
=
____________________
m
.
c
.
d
.
(
24
,
18
)
=
____________________
m
.
c
.
d
.
(
15
,
30
)
=
____________________
m
.
c
.
d
.
(
18
,
30
)
=
____________________
m
.
c
.
d
.
(
25
,
40
)
=
____________________
m
.
c
.
d
.
(
40
,
60
)
=
____________________
m
.
c
.
d
.
(
8
,
24
)
=
____________________
m
.
c
.
d
.
(
30
,
21
)
=
____________________
m
.
c
.
d
.
(
21
,
25
)
=
1
