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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 vi vector<int>

#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

struct Edge {
	int want;
	int have;
	int v, u;
	Edge(int _v, int _u) {
		want = have = 0;
		v = _v;
		u = _u;
	}
};

vector<Edge> edges;

map<pii, int> edge_id;

vector<vector<pii> > g;

void addEdge(int v, int u, int have, int want) {
	if (v > u)
		swap(v, u);
	if (edge_id.find({v, u}) == end(edge_id)) {
		edge_id[{v, u}] = sz(edges);
		g[v].push_back({u, sz(edges)});
		g[u].push_back({v, sz(edges)});
		edges.push_back(Edge(v, u));
	}
	int id = edge_id[{v, u}];
	if (have)
		edges[id].have = 1;
	if (want)
		edges[id].want = 1;
}

vi vis, root_id;

int query_count = 0;
const int query_max = 200 * 1000;

vector<pii> queries;

void print_queries() {
	cout << sz(queries) << '\n';
	for (auto [t, id] : queries) {
		if (t == 1) {
			cout << "+ " << edges[id].v + 1 << ' ' << edges[id].u + 1 << '\n';
		} else if (t == -1) {
			cout << "- " << edges[id].v + 1 << ' ' << edges[id].u + 1 << '\n';
		}
	}
}

void query_add(int id) {
	queries.push_back({1, id});
	query_count += 1;
	assert(edges[id].have == 0);
	edges[id].have = 1;
}

void query_rem(int id) {
	queries.push_back({-1, id});
	query_count += 1;
	assert(edges[id].have == 1);
	edges[id].have = 0;
}

void add_root_edges(int v) {
	vis[v] = 1;
	if (v != 0 && edges[root_id[v]].have == 0)
		query_add(root_id[v]);
	for (auto [u, id] : g[v])
		if (!vis[u] && edges[id].have == 1)
			add_root_edges(u);
}

void add_other_edges(int v) {
	vis[v] = 1;
	for (auto [u, id] : g[v])
		if (edges[id].have == 0)
			query_add(id);
	for (auto [u, id] : g[v])
		if (!vis[u])
			add_other_edges(u);
}

void rem_other_edges(int v) {
	vis[v] = 1;
	if (v != 0) {
		for (auto [u, id] : g[v])
			if (id != root_id[v] && edges[id].want == 0 && edges[id].have == 1)
				query_rem(id);
	}
	for (auto [u, id] : g[v])
		if (!vis[u])
			rem_other_edges(u);
}

void rem_root_edges(int v) {
	vis[v] = 1;
	for (auto [u, id] : g[v])
		if (!vis[u] && edges[id].want == 1)
			rem_root_edges(u);
	if (v != 0 && edges[root_id[v]].want == 0)
		query_rem(root_id[v]);
}

int32_t main() {
   	ios_base::sync_with_stdio(0), cin.tie(0);
	int n;
	cin >> n;
	g.resize(n);
	vis.resize(n);
	int ms;
	cin >> ms;
	rep(i, ms) {
		int v, u;
		cin >> v >> u;
		v --, u --;
		addEdge(v, u, 1, 0);
	}
	int md;
	cin >> md;
	rep(i, md) {
		int v, u;
		cin >> v >> u;
		v --, u --;
		addEdge(v, u, 0, 1);
	}
	fwd(i, 1, n)
		addEdge(0, i, 0, 0);
	root_id.resize(n, -1);
	rep(v, n) {
		for (auto [u, id] : g[v])
			if (u == 0) {
				root_id[v] = id;
				break;
			}
	}
	fill(all(vis), 0);
	add_root_edges(0);
	fill(all(vis), 0);
	add_other_edges(0);
	fill(all(vis), 0);
	rem_other_edges(0);
	fill(all(vis), 0);
	rem_root_edges(0);
	rep(i, sz(edges))
		assert(edges[i].have == edges[i].want);
	assert(query_count <= query_max);
	print_queries();
   	return 0;
}