1
1
1
1
9
9
\N
7
1
9
7
b
b
b
b
a
a
\N
c
sep1
80000
80000
sep2
80000
80000
sep3
1
sep4
8000
sep5
8000
sep6
issue #53187
0	1	1
1	0	0
-
0	0	0
1	1	1