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

#define fwd(i, a, n) for (int i = (a); i < (n); i ++)
#define rep(i, n) fwd(i, 0, n)
#define all(X) begin(X), end(X)
#define sz(X) ((int)X.size())
#define st first
#define nd second
#define pii pair<int, int>
#define pil pair<int, long long>
#define vi vector<int>
#define ll long long

#ifdef LOC
auto &operator << (auto &out, pair<auto, auto> a) {
	return out << "(" << a.st << ", " << a.nd << ")";
}

auto &operator << (auto &out, auto a) {
	out << "{";
	for (auto b : a)
		out << b << ", ";
	return out << "}";
}

void dump(auto... x) { ((cerr << x << ", "), ...) << '\n'; }

#define debug(x...) cerr << "[" #x "]: ", dump(x)
#else
#define debug(...) 0
#endif

const int maxN = 30 * 1000 + 10;

int vis[2 * maxN];
ll odpow[maxN];
pil magic[2 * maxN];
vector<pil> g[2 * maxN];

void dfs(int v) {
	vis[v] = 1;
	for (auto [u, w] : g[v])
		if (!vis[u]) {
			magic[u].st = magic[v].st * -1;
			magic[u].nd = w - magic[v].nd;
			dfs(u);
		}
}

int32_t main() {
   	ios_base::sync_with_stdio(0), cin.tie(0);
	int n, m, q;
	cin >> n >> m >> q;
	vector<vi> costs(n, vi(m));
	rep(i, n)
		rep(j, m)
			cin >> costs[i][j];
	vector<vector<ll> > opt(n, vector<ll>(m));
	const ll inf = 1e18;
	rep(s, n) {
		fwd(i, s, n)
			fill(all(opt[i]), inf);
		opt[s][0] = 0;
		fwd(i, s, n) {
			rep(j, m - 1)
				if (opt[i][j] + costs[i][j] < opt[i][j + 1])
					opt[i][j + 1] = opt[i][j] + costs[i][j];
			if (i + 1 != n) {
				fwd(j, 1, m)
					opt[i + 1][j] = opt[i][j];
			}
		}
		fwd(t, s, n) {
			ll w = opt[t][m - 1] + costs[t][m - 1];
			g[s].push_back({n + t, w});
			g[n + t].push_back({s, w});
		}
	}
	magic[0] = {1, 0};
	dfs(0);
	rep(v, 2 * n) {
		magic[v].st *= 2;
		magic[v].nd *= 2;
		for (auto &[u, w] : g[v])
			w *= 2;
	}
	ll xval = 0;
	bool xval_set = false;
	rep(v, 2 * n) {
		for (auto [u, w] : g[v])
			if ((magic[v].st + magic[u].st) != 0) {
				xval = (w - magic[v].nd - magic[u].nd) / 2;
				if (magic[v].st < 0)
					xval *= -1;
				xval_set = true;
				break;
			}
		if (xval_set)
			break;
	}
	rep(v, 2 * n)
		magic[v].nd += xval * magic[v].st;
   	bool works = true;
	rep(v, 2 * n) {
		for (auto [u, w] : g[v])
			if ((magic[v].nd + magic[u].nd) != w) {
				works = false;
				break;
			}
		if (!works)
			break;
	}
	if (works) {
		cout << 2 << '\n';
		if (q == 1) {
			rep(i, n)
				cout << magic[i].nd / 2 << ' ' << magic[n + i].nd / 2 << '\n';
		}
	} else {
		cout << 3 << '\n';
		if (q == 1) {
			fill(odpow, odpow + n, -inf);
			rep(v, n)
				for (auto [u, w] : g[v])
					odpow[u - n] = max(odpow[u - n], w / 2);
			rep(i, n)
				cout << 0 << ' ' << odpow[i] << ' ' << 0 << '\n';
		}
	}
	return 0;
}