#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <climits>
#include <cfloat>
#include <ctime>
#include <cassert>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
#include <numeric>
#include <list>
#include <iomanip>
#include <fstream>
#include <bitset>

using namespace std;

#define foreach(it, c) for (__typeof__((c).begin()) it=(c).begin(); it != (c).end(); ++it)
template <typename T> void print_container(ostream& os, const T& c) { const char* _s = " "; if (!c.empty()) { __typeof__(c.begin()) last = --c.end(); foreach (it, c) { os << *it; if (it != last) os << _s; } } }
template <typename T> ostream& operator<<(ostream& os, const vector<T>& c) { print_container(os, c); return os; }
template <typename T> ostream& operator<<(ostream& os, const set<T>& c) { print_container(os, c); return os; }
template <typename T> ostream& operator<<(ostream& os, const multiset<T>& c) { print_container(os, c); return os; }
template <typename T> ostream& operator<<(ostream& os, const deque<T>& c) { print_container(os, c); return os; }
template <typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& c) { print_container(os, c); return os; }
template <typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p) { os << "(" << p.first << ", " << p.second << ")"; return os; }

template <typename T> void print(T a, int n, const string& split = " ") { for (int i = 0; i < n; i++) { cout << a[i]; if (i + 1 != n) cout << split; } cout << endl; }
template <typename T> void print2d(T a, int w, int h, int width = -1, int br = 0) { for (int i = 0; i < h; ++i) { for (int j = 0; j < w; ++j) { if (width != -1) cout.width(width); cout << a[i][j] << ' '; } cout << endl; } while (br--) cout << endl; }
template <typename T> void input(T& a, int n) { for (int i = 0; i < n; ++i) cin >> a[i]; }
#define dump(v) (cerr << #v << ": " << v << endl)

#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
#define erep(i, n) for (int i = 0; i <= (int)(n); ++i)
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define clr(a, x) memset(a, x, sizeof(a))
#define sz(a) ((int)(a).size())
#define mp(a, b) make_pair(a, b)
#define ten(n) ((long long)(1e##n))

template <typename T, typename U> void upmin(T& a, const U& b) { a = min<T>(a, b); }
template <typename T, typename U> void upmax(T& a, const U& b) { a = max<T>(a, b); }
template <typename T> void uniq(T& a) { sort(a.begin(), a.end()); a.erase(unique(a.begin(), a.end()), a.end()); }
template <class T> string to_s(const T& a) { ostringstream os; os << a; return os.str(); }
template <class T> T to_T(const string& s) { istringstream is(s); T res; is >> res; return res; }
void fast_io() { cin.tie(0); ios::sync_with_stdio(false); }
bool in_rect(int x, int y, int w, int h) { return 0 <= x && x < w && 0 <= y && y < h; }

typedef long long ll;
typedef pair<int, int> pint;

const int dx[] = { 0, 1, 0, -1 };
const int dy[] = { 1, 0, -1, 0 };




ll ext_gcd(ll a, ll b, ll &x, ll &y)
{
    if (b)
    {
        ll g = ext_gcd(b, a % b, y, x);
        y -= (a / b) * x;
        return g;
    }
    else
    {
        x = 1, y = 0;
        return a;
    }
}
// 逆元
// a * x == 1 (mod m)を満たすxを求める
// 解なしの場合0を返す
// a*x + m*y == 1をやる
ll mod_inverse(ll a, ll mod)
{
    ll x, y;
    if (ext_gcd((a + mod) % mod, mod, x, y) == 1)
        return (mod + x % mod) % mod;
    else
        return 0;
}
pair<ll, ll> linear_congruence(const vector<ll>& A, const vector<ll>& B, const vector<ll>& M)
{
    ll x = 0, m = 1;
    for (int i = 0; i < (int)A.size(); ++i)
    {
        ll a = A[i] * m,  b = B[i] - A[i] * x, d = __gcd(M[i], a);
        if (b % d != 0)
            return make_pair(0, -1); // unsolvable
        ll t = b / d * mod_inverse(a / d, M[i] / d) % (M[i] / d);
        x = x + m * t;
        m *= M[i] / d;
        x = (x + m) % m;
    }
    return make_pair(x % m, m);
}
int main()
{
    int n, m, d;
    cin >> n >> m >> d;
    vector<ll> _a(m);
    input(_a, m);

    ll cur = n;
    rep(_, d)
    {
        auto a = _a;
        vector<ll> r(m);
        input(r, m);
        rep(i, m)
        {
            if (r[i] == -1)
            {
                r[i] = 0;
                a[i] = 1;
            }
        }
        auto w = linear_congruence(vector<ll>(m, 1), r, a);
        ll next = cur / w.second * w.second + w.first;
        if (next > cur)
            next -= w.second;
        if (w.second == -1 || w.first > cur || next < 0)
        {
            cout << -1 << endl;
            return 0;
        }
        cur = next;
    }
    cout << cur << endl;
}

Measured memory_bytes: 1216