h,w,q=gets.split.map(&:to_i)
seki=[h]*w
sum = h*w

q.times{
  y,x=gets.split.map(&:to_i)
  if seki[x-1] > y-1
    sum -= seki[x-1] - (y-1)
    seki[x-1] = y-1
  end
  p sum
}