x, y, = map(int, input().split())

if x==0 and y==0:
  print(0)
elif x==0 or y==0:
  print(1)
elif any(x2==y2 for x2, y2 in [(x, y), (-x, y), (x, -y), (-x, -y)]):
  print(1)
else:
  print(2)