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#include <bits/stdc++.h>
#define dbg(x) " [" << #x << ": " << (x) << "] "
using namespace std;
using ll = long long;
template<typename A, typename B>
ostream& operator<<(ostream& out, const pair<A,B>& p) {
    return out << "(" << p.first << ", " << p.second << ")";
}
template<typename T>
ostream& operator<<(ostream& out, const vector<T>& c) {
    out << "{";
    for(auto it = c.begin(); it != c.end(); it++) {
        if(it != c.begin()) out << ", ";
        out << *it;
    }
    return out << "}";
}

void upd(ll& x, ll y) {
    x = min(x, y);
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n, m, q;
    cin >> n >> m >> q;
    vector<vector<ll>> v(n, vector<ll>(m));
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < m; j++) cin >> v[i][j];
    }

    vector<vector<ll>> d(n, vector<ll>(n));
    vector<vector<vector<ll>>> dst(n, vector<vector<ll>>(n, vector<ll>(m + 1, 1e18)));
    for(int st = 0; st < n; st++) {
        dst[st][st][0] = 0;
        for(int i = st; i < n; i++) {
            for(int j = 0; j <= m; j++) {
                if(j) {
                    upd(dst[st][i][j], dst[st][i][j - 1] + v[i][j - 1]);
                }
                if(st < i && 0 < j && j < m) {
                    upd(dst[st][i][j], dst[st][i - 1][j]);
                }
            }
            d[st][i] = dst[st][i][m];
        }
    }

    vector<ll> a(n), b(n);
    for(int i = 0; i < n; i++) {
        b[i] = d[0][i];
        a[i] = d[i][i] - b[i];
    }
    bool f = true;
    for(int i = 0; i < n; i++) {
        for(int j = i; j < n; j++) {
            if(a[i] + b[j] != d[i][j]) {
                f = false;
                break;
            }
        }
        if(!f) break;
    }
    if(f) {
        cout << 2 << endl;
        if(q) {
            for(int i = 0; i < n; i++) cout << a[i] << " " << b[i] << '\n';
        }
    } else {
        cout << 3 << endl;
        if(q) {
            cout << "0 0 0\n0 1 0\n0 0 0\n";
        }
    }

    return 0;
}