coor1.out

0 0

coor2.in

1

coor2.out

1 0

coor3.in

16

coor3.out

-2 2

coor4.in

79

coor4.out

3 -4

coor5.in

80

coor5.out

4 -4

coor6.in

81

coor6.out

5 -4

coor7.in

82

coor7.out

5 -3

coor8.in

999

coor8.out

9 16

coor9.in

1000

coor9.out

8 16