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

using m1 = modint998244353;
using m2 = modint1000000007;
using P = pair<m1, m2>;

unsigned int xorshift() {
    static unsigned int x = 123456789, y = 362436069, z = 521288629, w = 88675123;
    unsigned int t = (x ^ (x << 11));
    x = y;
    y = z;
    z = w;
    return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)));
}

P op(P a, P b) {
    return {a.first + b.first, a.second + b.second};
}

P e() {
    return {0, 0};
}

int main() {
    int n, l, q;
    cin >> n >> l >> q;
    vector<string> s(n);
    for (int i = 0; i < n; i++) {
        cin >> s[i];
    }
    m1 b1 = xorshift();
    m2 b2 = xorshift();
    vector<m1> p1(l, 1);
    vector<m2> p2(l, 1);
    for (int i = 1; i < l; i++) {
        p1[i] = p1[i - 1] * b1;
        p2[i] = p2[i - 1] * b2;
    }
    vector<segtree<P, op, e>> seg(n, segtree<P, op, e>(l));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < l; j++) {
            int x = s[i][j] - 'a' + 1;
            m1 h1 = p1[j] * x;
            m2 h2 = p2[j] * x;
            seg[i].set(j, {h1, h2});
        }
    }
    while (q--) {
        int t;
        cin >> t;
        if (t == 1) {
            int k;
            char c, d;
            cin >> k >> c >> d;
            k--;
            int x = d - 'a' + 1;
            for (int i = 0; i < n; i++) {
                if (s[i][k] == c) {
                    m1 h1 = p1[k] * x;
                    m2 h2 = p2[k] * x;
                    seg[i].set(k, {h1, h2});
                    s[i][k] = d;
                }
            }
        } else {
            string pre;
            cin >> pre;
            int len = pre.size();
            m1 h1 = 0;
            m2 h2 = 0;
            for (int i = 0; i < len; i++) {
                int x = pre[i] - 'a' + 1;
                h1 += p1[i] * x;
                h2 += p2[i] * x;
            }
            int ans = 0;
            for (int i = 0; i < n; i++) {
                P cur = seg[i].prod(0, len);
                if (cur.first == h1 && cur.second == h2) {
                    ans++;
                }
            }
            cout << ans << endl;
        }
    }
}