11o12
??1o8
1
+1+1oo
1o2o
1oo1o9o
1oo1ooo15oo
3
1ooo
21ooo15oo3
o
155o155o
2??12oo2??22o
2131ooo2ooo42o5o
11
315255o1o
312o
6311o
34
12
6
1oo
3o5o3o5o
92o92o
1142
4
2o5o2o5o
32