Point in the Figure

h = int(input())
x = int(input())
y = int(input())

if (0 < x < 3*h and 0 < y < h) or (h < x < 2*h and 0 < y < 4*h):
  print("inside")
elif (0 <= x < h and h < y <= 4*h) or (2*h < x <= 3*h and h < y <= 4*h) or y < 0 or x < 0 or y > 4*h or x > 3*h:
  print("outside")
else:
  print("border")