#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;

typedef long long ll;
typedef vector<vector<int>> Graph;
typedef pair<int, int> pii;
typedef pair<ll, ll> 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<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> 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<int> di = {1,0,-1,0};
vector<int> dj = {0,1,0,-1};

#ifdef LOCAL
#  include <debug_print.hpp>
#  define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define debug(...) (static_cast<void>(0))
#endif

struct RollingHash{
    long long base = 114514;
    long long mod = 1000000007;

    int N;
    vector<long long> hash;
    vector<long long> pw;
    RollingHash(string &S){
        N = S.size();
        hash.resize(N + 1, 0);
        pw.resize(N + 1, 1);

        for(int i = 0; i < N; i++){
            hash[i + 1] = (hash[i] * base + S[i]) % mod;
            pw[i + 1] = pw[i] * base % mod;
        }
    }

    long long get(int l, int r){
        return (hash[r] - (hash[l] * pw[r - l]) % mod + mod) % mod;
    }
};

const long long base = 114514;
const long long mod = 1000000007;
using T = array<long long, 2>;

T op(T lhs, T rhs){
    T res;
    res[0] = (lhs[0] * rhs[1] + rhs[0]) % mod;
    res[1]= (lhs[1] * rhs[1]) % mod;
    return res;
}
T e(){
    return T{0, 1};
}

int flg, k, m, ans;
char c, d;
string t;
long long target, hsh;
T res;

int main(){
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    int N, L, Q; cin >> N >> L >> Q;
    vector<string> S(N);
    rep(i, N) cin >> S[i];

    vector<T> vec(L * N);
    rep(id, N)rep(i, L) {
        vec[id * L + i] = T{S[id][i], base};
    }
    segtree<T,op,e> seg(vec);

    while(Q--){
        cin >> flg;
        if(flg == 1){
            cin >> k >> c >> d;
            k--;
            rep(i, N){
                if(S[i][k] == c){
                    S[i][k] = d;
                    seg.set(L * i + k, T{d, base});
                }
            }
        }
        else{
            cin >> t;
            m = t.size();
            RollingHash rh(t);
            target = rh.get(0, m);

            ans = 0;
            rep(i, N){
                if(target == seg.prod(i * L, i * L + m)[0]) ans++;
            }
            cout << ans << endl;
        }
    }
}