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#include <bits/stdc++.h>

using namespace std;

const int MAXN = 30002;
const int MAXO = 300000;
set<int> edges1[MAXN];
set<int> edges2[MAXN];
bool visited1[MAXN];
bool visited2[MAXN];
int dist1[MAXN];
int dist2[MAXN];
int operations[MAXO][3];

void bsf(int start, set<int> edges[], int dist[MAXN])
{
	bool visited[MAXN] = {false};
	queue<int> q;
	q.push(start);
	visited[start] = true;
	while (!q.empty())
	{
		int a = q.front();
		q.pop();
		for (int b : edges[a])
		{
			if (!visited[b])
			{
				dist[b] = dist[a] + 1;
				visited[b] = true;
				q.push(b);
			}
		}
	}
}

int main()
{
	int n, m1, m2;
	cin >> n >> m1;
	for (int i = 0; i < m1; i++)
	{
		int a, b;
		cin >> a >> b;
		edges1[a].insert(b);
		edges1[b].insert(a);
	}

	cin >> m2;
	for (int i = 0; i < m2; i++)
	{
		int a, b;
		cin >> a >> b;
		edges2[a].insert(b);
		edges2[b].insert(a);
	}

	// dodawanie krawędzi
	int vadd_size = 0;
	for (int i = 1; i < n; i++)
	{
		dist2[i] = 0;
		bsf(i, edges2, dist2);
		do {
			int diff[n] = {0};
			vector<int> vadd = {}, addfirst = {};
			dist1[i] = 0;
			bsf(i, edges1, dist1);
			for (int j = i + 1; j <= n; j++)
			{
				diff[j] = dist1[j] - dist2[j];
				if (diff[j] > 0)
				{
					if (dist1[j] == 2)
					{
						addfirst.push_back(j);
					}
					else
					{
						vadd.push_back(j);
					}
				}
			}
			for (int j : addfirst)
			{
				edges1[i].insert(j);
				edges1[j].insert(i);
				operations[0][0]++;
				operations[operations[0][0]][1] = i;
				operations[operations[0][0]][2] = j;
			}
			vadd_size = vadd.size();
			if (addfirst.size() == 0 && vadd.size() > 0)
			{
				for (int j = i + 1; j <= n; j++)
				{
					if (dist1[j] == 2)
					{
						edges1[i].insert(j);
						edges1[j].insert(i);
						operations[0][0]++;
						operations[operations[0][0]][1] = i;
						operations[operations[0][0]][2] = j;
					}
				}
			}
		} while (vadd_size > 0);
	}

	// usuwanie krawędzi
	int vrem_size = 0;
	for (int i = 1; i < n; i++)
	{
		dist2[i] = 0;
		bsf(i, edges2, dist2);
		// do {
		int diff[n] = {0};
		vector<int> vrem = {}, remfirst = {};
		dist1[i] = 0;
		bsf(i, edges1, dist1);
		for (int j = i + 1; j <= n; j++)
		{
			diff[j] = dist1[j] - dist2[j];
			if (diff[j] < 0)
			{
				if (dist1[j] == 1)
				{
					remfirst.push_back(j);
				}
				else
				{
					vrem.push_back(j);
				}
			}
		}
		for (int j : remfirst)
		{
			edges1[i].erase(j);
			edges1[j].erase(i);
			operations[0][0]++;
			operations[operations[0][0]][0] = -1;
			operations[operations[0][0]][1] = i;
			operations[operations[0][0]][2] = j;
		}
		vrem_size = vrem.size();
		// if (remfirst.size() == 0 && vrem.size() > 0)
		// {
		// 	for (int j = i + 1; j <= n; j++)
		// 	{
		// 		if (dist1[j] == 2)
		// 		{
		// 			cout << "+ " << i << " " << j << endl;
		// 			edges1[i].push_back(j);
		// 			edges1[j].push_back(i);
		// 		}
		// 	}
		// }
		//} while (vrem_size > 0);
	}

	cout << operations[0][0] << endl;
	for (int i = 1; i <= operations[0][0]; i++)
	{
		cout << (operations[i][0] < 0 ? "- " : "+ ") << operations[i][1] << " " << operations[i][2] << endl;
	}

	return 0;
}