x1, y1, x2, y2, d = gets.split.map(&:to_i)

if 0 < x1
  dx = x1
  x1 -= dx
  x2 -= dx
  d -= dx
elsif x2 < 0
  dx = x2.abs
  x1 += dx
  x2 += dx
  d -= dx
end

if 0 < y1
  dy = y1
  y1 -= dy
  y2 -= dy
  d -= dy
elsif y2 < 0
  dy = y2.abs
  y1 += dy
  y2 += dy
  d -= dy
end

if d < 0
  puts 0
elsif d == 0
  puts 1
else
  raise
end