#include <bits/stdc++.h>
template <typename Tp>
inline void read(Tp &x) {
  x = 0;
  bool f = true;
  char ch = getchar();
  for (; ch < '0' || ch > '9'; ch = getchar()) f ^= ch == '-';
  for (; ch >= '0' && ch <= '9'; ch = getchar()) x = x * 10 + (ch ^ 48);
  x = f ? x : -x;
}
const int N = 300, M = 2e6;
int fa[N * N + 5], col[N + 5][N + 5], n, m, q, ans[M + 5],
    dx[4] = {-1, 0, 1, 0}, dy[4] = {0, 1, 0, -1};
struct Pair {
  int x, y, id;
};
std::vector<Pair> ins[M + 5], del[M + 5];
int Father(int x) { return fa[x] == x ? x : fa[x] = Father(fa[x]); }
inline void solve(std::vector<Pair> Vec, int typ) {
  for (int i = 1; i <= n; ++i)
    for (int j = 1; j <= m; ++j) {
      col[i][j] = 0;
      fa[(i - 1) * m + j] = (i - 1) * m + j;
    }
  for (int i = 0; i < (int)Vec.size(); ++i) {
    Pair u = Vec[i];
    int cur = 1;
    col[u.x][u.y] = 1;
    for (int j = 0; j < 4; ++j) {
      int X = u.x + dx[j], Y = u.y + dy[j];
      if (X >= 1 && X <= n && Y >= 1 && Y <= m && col[X][Y]) {
        int fx = Father((u.x - 1) * m + u.y), fy = Father((X - 1) * m + Y);
        if (fx != fy) fa[fx] = fy, --cur;
      }
    }
    ans[u.id] += typ * cur;
  }
}
int main() {
  read(n), read(m), read(q);
  int lim = 0;
  for (int i = 1; i <= q; ++i) {
    int x, y, c;
    read(x), read(y), read(c);
    if (i == q) lim = c;
    if (col[x][y] == c) continue;
    ins[c].push_back((Pair){x, y, i}),
        del[col[x][y]].push_back((Pair){x, y, i});
    col[x][y] = c;
  }
  for (int i = 1; i <= n; ++i)
    for (int j = 1; j <= m; ++j) del[col[i][j]].push_back((Pair){i, j, q + 1});
  for (int i = 0; i <= lim; ++i) std::reverse(del[i].begin(), del[i].end());
  for (int i = 0; i <= lim; ++i) solve(ins[i], 1), solve(del[i], -1);
  int anss = 1;
  for (int i = 1; i <= q; ++i) {
    anss += ans[i];
    printf("%d\n", anss);
  }
  return 0;
}
