10
-90 -90 90 90
-85 -86 88 87
-85 -82 88 83
-83 -78 84 80
-81 -76 80 75
-77 -72 75 75
-73 -70 71 72
-69 -66 70 70
-64 -64 70 68
-63 -61 67 63