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#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <cstring>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <unordered_set>
#include <vector>
#include <climits>
using namespace std;
 
using ll = long long;
using ul = unsigned long long;
using db = long double;
using pi = pair<int, int>;
using vi = vector<int>;
using vl = vector<ll>;
using vpi = vector<pi>;
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define x first
#define y second

template<class T> using V = vector<T>; 
template<class T, size_t SZ> using AR = array<T,SZ>; 

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define each(a,x) for (auto& a: x)
 
#define sz(x) int((x).size())
#define all(x) (x).begin(), (x).end()
#define rep(i,a,b) for(int i = (a); i < (b); i++)
#define per(i,a,b) for(int i = (b) - 1; i >= (a); i--)

#ifdef LOCAL 
template<class A, class B> auto& operator<<(auto &o, pair<A, B> p) { return o << '(' << p.x << ", " << p.y << ')'; }
auto& operator<<(auto& o, auto a) {
    o << "{";
    for (auto b : a) o << b << ", ";
    return o << "}";
}
void dump(auto... x) { ((cerr << x << ", "), ...) << "\n"; }
#define debug(x...) cerr << "[" #x "]: ", dump(x)
#else
#define debug(...) ;
#endif

template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
template<class T> int lwb(V<T>& a, const T& b) { return int(lb(all(a),b)-bg(a)); }
template<class T> int upb(V<T>& a, const T& b) { return int(ub(all(a),b)-bg(a)); }
template<class T> void remDup(vector<T>& v) { sort(all(v)); v.erase(unique(all(v)),end(v)); }

using State = vector<vector<int>>;

vector<int> neg(vector<int> a) {
    rep(i,0,sz(a)) {
        a[i] = a[i] ^ 1;
    }
    return a;
}

State neg(State a) {
    for (auto &x : a) {
        x = neg(x);
    }
    return a;
}

State reduce(State s) {
    State res;
    vector<bool> git(sz(s), true);
    // redukcja par antysymetrycznych
    rep(i,0,sz(s)) {
        if (!git[i]) continue;
        if (sz(s[i]) == 0) {
            git[i] = false;
            continue;
        }
        rep(j,i+1,sz(s)) {
            if (!git[j]) continue;
            if (s[i] == neg(s[j])) {
                git[i] = false;
                git[j] = false;
                break;
            }
        }
        if (git[i]) {
            res.pb(s[i]);
        }
    }
    sort(all(res));
    return res;
}

map<State, bool> memo;

bool is_los_heura(const State &state) {
    bool all_0 = true;
    if (state.empty()) return false;
    for (const auto &s : state) {
        if (s[0] == 1) {
            all_0 = false;
            break;
        }
    }
    return all_0;
}

bool is_win_heura(const State &state) {
    bool all_1 = 0;
    for (const auto &s : state) {
        if (s[0] == 0) {
            all_1 = false;
            break;
        }
    }
    return all_1;
}

clock_t start;
int iters = 0;
bool finish = false;

bool is_win(State state) {
    if (finish) return false;
    state = reduce(state);
    if (memo.count(state)) return memo[state];
    if (is_los_heura(state)) return memo[state] = false;
    if (is_win_heura(state)) return memo[state] = true;
    iters++;
    if (iters % 64 == 0 && clock() - start >= 23 * CLOCKS_PER_SEC) {
        finish = true;
        return false;
    }
    per(i,0,sz(state)) {
        rep(j,0,sz(state[i])) {
            State nxt = state;
            while (sz(nxt[i]) != j) nxt[i].pop_back();
            nxt = neg(nxt);
            nxt = reduce(nxt);
            if (memo.count(nxt) && !is_win(nxt)) {
                return memo[state] = true;
            }
        }
    }
    per(i,0,sz(state)) {
        rep(j,0,sz(state[i])) {
            if (!state[i][j]) continue;
            State nxt = state;
            while (sz(nxt[i]) != j) nxt[i].pop_back();
            nxt = neg(nxt);
            nxt = reduce(nxt);
            if (!is_win(nxt)) {
                return memo[state] = true;
            }
        }
    }
    return memo[state] = false;
}

bool is_good(State state) {
    return !is_win(state) && !is_win(neg(state));
}

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);

    start = clock();

    int n, m, k;
    cin >> n >> m >> k;
    State a(n);
    // assert(n == 1 && k == 1);
    // a[0].resize(m);

    // rep(mask,0,1<<(m-1)) {
    //     rep(i,0,m) {
    //         a[0][i] = (mask >> i) & 1;
    //     }
    //     debug(a[0], is_win(a));
    // }

    rep(i,0,k) {
        a[i].resize(m);
        string s;
        cin >> s;
        rep(j,0,m) a[i][j] = (s[j] == 'C');
    }

    auto result = is_good(a);
    if (finish) {
        cout << "0\n";
        return 0;
    }

    cout << result << '\n';

    return 0;
}