//#pragma GCC optimize("Ofast,unroll-loops") #ifdef LOCAL #include "debug.h" #else #include #include #include #define debug(x...) #endif using namespace std; #define int ll typedef long long ll; typedef long double ld; typedef pair pii; #define sz(x) int((x).size()) template using ordered_set = __gnu_pbds::tree , __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>; #ifdef ONLINE_JUDGE mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); #else mt19937 rng(1000 - 7); #endif const int N = 6; const int M = 1e3 + 10; //const int MOD = 998244353; const ll MOD = 1e9 + 9; const ld eps = 5e-8; const pii dir[] = { { 0, 1 }, { 0, -1 }, { 1, 0 }, { -1, 0 } }; int n, m, k; int a[N][M], dp[M][(1 << N)]; inline int get(int x, int i) { return x >> i & 1; } bool check(int j, int x, int y) { if (get(y, 0) && !get(y, 1) || get(y, n - 1) && !get(y, n - 2)) { return false; } for (int i = 1; i < n - 1; i++) { if (get(y, i) && !get(y, i - 1) && !get(y, i + 1)) { return false; } } for (int i = 1; i < n; i++) { if (get(y, i) && get(y, i - 1) && (get(x, i) || get(x, i - 1))) { return false; } if (get(y, i) && get(y, i - 1) && (a[j][i] || a[j + 1][i] || a[j][i - 1] || a[j + 1][i - 1])) { return false; } } return true; } inline void relax(int& x, int y) { x = (x + y) % MOD; } signed main() { #ifdef LOCAL freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif cout << fixed << setprecision(9); ios::sync_with_stdio(false), cin.tie(0), cout.tie(0); cin >> n >> m >> k; for (int i = 0; i < k; i++) { int x, y; cin >> x >> y; a[y - 1][x - 1] = 1; } dp[0][0] = 1; for (int i = 0; i < m; i++) { for (int mask1 = 0; mask1 < (1 << n); mask1++) { bool flag = true; for (int j = 0; j < n && flag; j++) { if (get(mask1, j) && a[i][j]) { flag = false; } } if (!flag) { continue; } if (mask1) { relax(dp[i][mask1], dp[i][0]); } debug(i, mask1, dp[i][mask1]); for (int mask2 = 0; mask2 < (1 << n); mask2++) { if (!check(i, mask1, mask2)) { continue; } relax(dp[i + 1][mask2], dp[i][mask1]); } } } cout << dp[m][0] << endl; return 0; }