#include <bits/stdc++.h>
inline int read(void) {
  int res = 0;
  char ch = std::getchar();
  while (ch < '0' || ch > '9') ch = std::getchar();
  while (ch >= '0' && ch <= '9') res = res * 10 + ch - 48, ch = std::getchar();
  return res;
}
const int MAXN = 3e2 + 19, MAXQ = 2e6 + 19;
int n, m, q;
int fa[MAXN * MAXN + MAXQ];
int getf(int node) {
  return node == fa[node] ? node : fa[node] = getf(fa[node]);
}
bool merge(int x, int y) {
  int a = getf(x), b = getf(y);
  if (a == b) return false;
  fa[b] = a;
  return true;
}
struct Query {
  int x, y;
  int bef, aft;
} query[MAXQ];
int ans[MAXQ];
int a[MAXN][MAXN];
int id[MAXN][MAXN], cnt;
int check(int x, int y) {
  int res = 0;
  if (x != 1 && a[x][y] == a[x - 1][y]) res += merge(id[x][y], id[x - 1][y]);
  if (x != n && a[x][y] == a[x + 1][y]) res += merge(id[x][y], id[x + 1][y]);
  if (y != 1 && a[x][y] == a[x][y - 1]) res += merge(id[x][y], id[x][y - 1]);
  if (y != m && a[x][y] == a[x][y + 1]) res += merge(id[x][y], id[x][y + 1]);
  return res;
}
void direct(void) {
  std::memset(fa, 0, sizeof fa);
  cnt = 0;
  for (int i = 1; i <= q; ++i) {
    int num = 1, x = query[i].x, y = query[i].y, c = query[i].aft;
    a[x][y] = c;
    id[x][y] = ++cnt;
    fa[cnt] = cnt;
    num -= check(x, y);
    ans[i] += num;
  }
}
void antidirect(void) {
  cnt = 0;
  for (int i = 1; i <= n; ++i)
    for (int j = 1; j <= m; ++j) id[i][j] = ++cnt, fa[cnt] = cnt;
  for (int i = 1; i <= n; ++i)
    for (int j = 1; j <= m; ++j) check(i, j);
  for (int i = q; i >= 1; --i) {
    int num = 1, x = query[i].x, y = query[i].y, c = query[i].bef;
    a[x][y] = c;
    id[x][y] = ++cnt;
    fa[cnt] = cnt;
    num -= check(x, y);
    ans[i] -= num;
  }
}
int main() {
  n = read(), m = read(), q = read();
  for (int i = 1; i <= q; ++i) {
    query[i].x = read(), query[i].y = read();
    query[i].aft = read(), query[i].bef = a[query[i].x][query[i].y];
    a[query[i].x][query[i].y] = query[i].aft;
  }
  std::memset(a, 0, sizeof a);
  direct();
  antidirect();
  ans[0] = 1;
  for (int i = 1; i <= q; ++i) std::printf("%d\n", ans[i] += ans[i - 1]);
  return 0;
}
