#!/usr/bin/env pypy3


class UnionFind(object):

    def __init__(self, number_of_nodes):
        self.par = list(range(number_of_nodes))
        self.rank = [0] * number_of_nodes
        self.group = [{i} for i in range(number_of_nodes)]

    def root(self, node):
        if self.par[node] == node:
            return node
        else:
            r = self.root(self.par[node])
            self.par[node] = r
            return r

    def in_the_same_set(self, node1, node2):
        return self.root(node1) == self.root(node2)

    def unite(self, node1, node2):
        x = self.root(node1)
        y = self.root(node2)
        if x == y:
            pass
        elif self.rank[x] < self.rank[y]:
            self.par[x] = y
            self.group[y].update(self.group[x])
            self.group[x].clear()
        else:
            self.par[y] = x
            self.group[x].update(self.group[y])
            self.group[y].clear()
            if self.rank[x] == self.rank[y]:
                self.rank[x] += 1


def solve(n, q, all_edges, removed_edges):
    removed_edges_set = set(removed_edges)
    uf = UnionFind(n)
    con_time = [0 for _ in range(n)]
    root = 0
    for edge in all_edges:
        if edge in removed_edges_set:
            continue
        uf.unite(*edge)
    for i in range(1, n):
        if uf.in_the_same_set(root, i):
            con_time[i] = -1
    for t, (source, dest) in enumerate(removed_edges[::-1]):
        if not (uf.in_the_same_set(source, dest)):
            is_same_s = uf.in_the_same_set(root, source)
            is_same_d = uf.in_the_same_set(root, dest)
            if not (is_same_s or is_same_d):
                uf.unite(source, dest)
            else:
                if is_same_d:
                    source, dest = dest, source
                for v in uf.group[uf.root(dest)]:
                    con_time[v] = q - t
            uf.unite(source, dest)
    return con_time


def main():
    n, m, q = map(int, input().split())
    all_edges = {tuple((int(x) - 1 for x in input().split()))
                 for _ in range(m)}
    removed_edges = [tuple((int(x) - 1 for x in input().split()))
                     for _ in range(q)]
    ans = solve(n, q, all_edges, removed_edges)
    print(*map(str, ans[1:]), sep="\n")


if __name__ == '__main__':
    main()