#include #include using namespace std; using namespace atcoder; istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); } istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); } istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); } typedef long long ll; typedef vector> Graph; typedef pair pii; typedef pair pll; #define FOR(i,l,r) for (int i = l;i < (int)(r); i++) #define rep(i,n) for (int i = 0;i < (int)(n); i++) #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define my_sort(x) sort(x.begin(), x.end()) #define my_max(x) *max_element(all(x)) #define my_min(x) *min_element(all(x)) template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } const int INF = (1<<30) - 1; const ll LINF = (1LL<<62) - 1; const int MOD = 998244353; const int MOD2 = 1e9+7; const double PI = acos(-1); vector di = {1,0,-1,0}; vector dj = {0,1,0,-1}; #ifdef LOCAL # include # define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else # define debug(...) (static_cast(0)) #endif struct RollingHash{ static const int B = 2; long long base[B] = {114514, 1919}; long long mod[B] = {1000000007, 1000000009}; int N; vector> hash; vector> pw; RollingHash(string &S){ N = S.size(); hash.resize(B); pw.resize(B); for(int b = 0; b < B; b++){ hash[b].resize(N + 1, 0); pw[b].resize(N + 1, 1); for(int i = 0; i < N; i++){ hash[b][i + 1] = (hash[b][i] * base[b] + S[i]) % mod[b]; pw[b][i + 1] = pw[b][i] * base[b] % mod[b]; } } } vector get(int l, int r){ vector res(B); for(int b = 0; b < B; b++){ res[b] = (hash[b][r] - (hash[b][l] * pw[b][r - l]) % mod[b] + mod[b]) % mod[b]; } return res; } int LCP(int l1, int r1, int l2, int r2){ // O(log|S|) // return LCP between S[l1, r1) and S[l2, r2) int len = min(r1 - l1, r2 - l2); int ok = -1, ng = len + 1; while(abs(ok - ng) > 1){ int mid = (ok + ng) / 2; if (get(l1, l1 + mid) == get(l2, l2 + mid)) ok = mid; else ng = mid; } return ok; } }; static const int B = 2; long long base[B] = {114514, 1919}; long long mod[B] = {1000000007, 1000000009}; struct Hash{ ll hash1, pow; }; using T = array; T op(T lhs, T rhs){ T res; rep(i,B){ res[i].hash1 = (lhs[i].hash1 * rhs[i].pow + rhs[i].hash1) % mod[i]; res[i].pow = (lhs[i].pow * rhs[i].pow) % mod[i]; } return res; } T e(){ T res; rep(i,B) res[i] = Hash{0, 1}; return res; } int main(){ cin.tie(0); ios_base::sync_with_stdio(false); int N, L, Q; cin >> N >> L >> Q; vector S(N); rep(i, N) cin >> S[i]; auto change = [&](char c){ T res; rep(i,B) { res[i].hash1 = c; res[i].pow = base[i]; } return res; }; vector> seg; rep(i, N){ vector dat(L); rep(j, L) dat[j] = change(S[i][j]); seg.push_back(segtree(dat)); } while(Q--){ int f; cin >> f; if(f == 1){ int k; cin >> k; k--; char c, d; cin >> c >> d; rep(i, N){ if(S[i][k] == c){ S[i][k] = d; seg[i].set(k, change(d)); } } } else{ string t; cin >> t; int m = t.size(); RollingHash rh(t); vector hash = rh.get(0, m); int ans = 0; rep(i, N) { vector res(B); rep(k, B) res[k] = seg[i].prod(0, m)[k].hash1; if(res == hash) ans++; } cout << ans << endl; } } }