package No400番台;

import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;

public class Q416 {
	public static void main(String[] args) {
		new Q416().solver();
	}

	@SuppressWarnings("unchecked")
	void solver() {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();// the number of islands
		int M = sc.nextInt();// the number of bridges
		int Q = sc.nextInt();// the number of events
		ArrayList<Edge>[] g = new ArrayList[N];
		for (int i = 0; i < N; i++) {
			g[i] = new ArrayList<>();
		}
		ArrayList<Integer>[] ref = new ArrayList[N];
		for (int i = 0; i < N; i++) {
			ref[i] = new ArrayList<>();
		}
		int[] A = new int[M];
		int[] B = new int[M];
		for (int i = 0; i < M; i++) {
			A[i] = sc.nextInt() - 1;
			B[i] = sc.nextInt() - 1;
		}
		int[] C = new int[Q];
		int[] D = new int[Q];
		for (int i = 0; i < Q; i++) {
			C[i] = sc.nextInt() - 1;
			D[i] = sc.nextInt() - 1;
			ref[C[i]].add(D[i]);
			ref[D[i]].add(C[i]);
			g[C[i]].add(new Edge(C[i], D[i], i + 1));
			g[D[i]].add(new Edge(D[i], C[i], i + 1));
		}
		for (int i = 0; i < M; i++) {
			if (ref[A[i]].contains(B[i]))
				continue;
			g[A[i]].add(new Edge(A[i], B[i], Q + 1));
			g[B[i]].add(new Edge(B[i], A[i], Q + 1));
		}

		ArrayDeque<Integer> que = new ArrayDeque<>();
		ArrayDeque<Integer>[] pending = new ArrayDeque[Q + 1];
		for (int i = 0; i < Q + 1; i++)
			pending[i] = new ArrayDeque<>();
		que.add(0);
		int[] d = new int[N];
		boolean[] checked = new boolean[N];
		while (!que.isEmpty()) {
			int v = que.poll();
			d[v] = Q + 1;
			checked[v] = true;
			for (Edge e : g[v]) {
				if (checked[e.dst])
					continue;
				if (e.event_time == Q + 1) {
					que.add(e.dst);
				} else {
					pending[e.event_time].add(e.dst);
				}
			}
		}
		for (int i = Q; i >= 1; i--) {
			while (!pending[i].isEmpty()) {
				que.add(pending[i].poll());
				while (!que.isEmpty()) {
					int v = que.poll();
					if (checked[v])
						continue;
					d[v] = i;
					checked[v] = true;
					for (Edge e : g[v]) {
						if (checked[e.dst])
							continue;
						if (e.event_time >= i) {
							que.add(e.dst);
						} else {
							pending[e.event_time].add(e.dst);
						}
					}
				}
			}
		}
		for (int i = 1; i < N; i++) {
			if (d[i] == Q + 1) {
				System.out.println(-1);
			} else {
				System.out.println(d[i]);
			}
		}
	}

	void tr(Object... o) {
		System.out.println(Arrays.deepToString(o));
	}

	class Edge {
		int src;
		int dst;
		int event_time;

		Edge(int src, int dst, int event_time) {
			this.src = src;
			this.dst = dst;
			this.event_time = event_time;
		}
	}
}