-1 -4
15 -7
-11 -4
18 -2
-3 4 
-15 -10
-16 4
-17 -3
-9 -10
-8 -13 
-19 -2
-8 -14
-9 -14
-178 -99
-91 -51
-10 7
61 61
66 66