func_code: def overlap(x1=0, y1=0, r1=0, x2=0, y2=0, r2=0):
      A = True
      if x1 == x2 and y1 == y2 and r1 == r2:
          return A
      distance = ((x2 - x1) ** 2 + (y2 - y1) ** 2) ** 0.5
      if abs(distance) <= r1:
          return A
      if abs(distance) <= r2:
          return A
      else:
          return False