-2
-1
base
1
2
3
4
5
-2
-1
base
1
2
3
4
5
t1
t2
t3
-2
-1
base
1
2
3
4
5
t1
t2
t3
-2
-1
base
1
2
3
4
5
-2
-1
base
1
2
3
4
5
t1
t2
t3
-2
-1
base
1
2
3
4
5
-2
-1
base
1
2
3
4
5
-2
-1
base
1
2
3
4
5
-2
-1
base
1
2
3
4
5
