#include <iostream>
#include <vector>
#include <stack>
using namespace std;

int n, m, q;
vector <vector <int>> g(2e5);

vector <int> p(2e5, 0);
vector <int> d(2e5, 0);
vector <int> l(2e5, 0);
vector <bool> cut(2e5, false);
stack <int> s;
vector <vector <int>> bcc;

int k;
vector <int> comp(2e5, -1);
vector <vector <int>> t(3e5);

vector <int> D(3e5, 0);
vector <vector <int>> up(3e5, vector <int>(20, 0));
vector <int> w(3e5, 1);
vector <int> wsum(3e5, -1);

void dfs(int x) {
	s.push(x);
	for (int i : g[x]) {
		if (p[x] == i) continue;
		if (p[i] && d[i] > d[x]) continue;
		if (p[i] && d[i] < d[x]) { l[x] = min(l[x], d[i]); continue; }

		p[i] = x;
		d[i] = l[i] = d[x] + 1;
		dfs(i);
		l[x] = min(l[x], l[i]);

		if (l[i] >= d[x]) {
			cut[x] = true;
			vector <int> v;
			while (l[s.top()] >= d[x]) { v.push_back(s.top()); s.pop(); }
			v.push_back(x);
			bcc.push_back(v);
		}
	}
}

void dfs2(int x) {
	for (int i : t[x]) {
		if (up[x][0] == i) continue;
		D[i] = D[x] + 1;
		up[i][0] = x;
		wsum[i] += wsum[x] + w[i];
		dfs2(i);
	}
}

int lca(int a, int b) {
	if (D[a] < D[b]) swap(a, b);
	for (int j = 19; j >= 0; j--) {
		if (D[up[a][j]] >= D[b]) a = up[a][j];
	}
	if (a == b) return a;
	for (int j = 19; j >= 0; j--) {
		if (up[a][j] == up[b][j]) continue;
		a = up[a][j];
		b = up[b][j];
	}
	return up[a][0];
}

void solve() {
	int a, b, c, ans;
	cin >> a >> b;
	a = comp[a]; b = comp[b];
	c = lca(a, b);
	ans = wsum[a] + wsum[b] - 2 * wsum[c] + abs(w[c]) - 2;
	//cout << a << " " << b << " " << c << endl;
	//cout << wsum[a] << " " << wsum[b] << " " << wsum[c] << "\n";
	cout << wsum[a] + wsum[b] - 2 * wsum[c] + abs(w[c]) - 2 << "\n";
}

int main() {
	cin >> n >> m >> q;
	int a, b;
	for (int i = 0; i < m; i++) {
		cin >> a >> b;
		g[a].push_back(b);
		g[b].push_back(a);
	}

	p[1] = l[1] = -1;
	dfs(1);
	int cnt = 0;
	for (int i : g[1]) if (p[i] == 1) cnt++;
	if (cnt < 2) cut[1] = false;

	/*cout << "\n";
	for (int i = 1; i <= n; i++) if (cut[i]) cout << i << " ";
	cout << "\n\n";
	for (auto v : bcc) {
		for (int i : v) cout << i << " ";
		cout << "\n";
	}
	cout << "\n";*/

	k = bcc.size();
	for (int i = 0; i < bcc.size(); i++) {
		for (int x : bcc[i]) {
			if (!cut[x]) { comp[x] = i; continue; }
			if (comp[x] == -1) comp[x] = k++;
			t[i].push_back(comp[x]);
			t[comp[x]].push_back(i);
		}
	}

	for (int i = 0; i < bcc.size(); i++) w[i] = bcc[i].size();
	wsum[0] = w[0];
	dfs2(0);
	for (int j = 1; j < 20; j++) {
		for (int i = 0; i < k; i++) {
			up[i][j] = up[up[i][j - 1]][j - 1];
		}
	}
	while (q--) solve();
}

/*

10 13 4
1 8
1 10
10 9
9 8
8 10
8 6
8 7
7 5
6 5
5 4
6 3
3 2
2 6
8 10
1 7
4 5
6 4

*/