from collections import defaultdict

h,w,q=map(int,input().split())
d=defaultdict(lambda: h+1)

cnt=h*w

for i in range(q):
    y,x=map(int,input().split())
    if y<=d[x]:
        cnt-=d[x]-y
        d[x]=y
        print(cnt)
    else:
        print(cnt)