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#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
#define INF 1000000000
#define INFl 1000000000000000000
#define all(x) x.begin(), x.end()
#define sajz(x) (int)x.size()
#define pb push_back
#define se second
#define fi first
#define yes puts("YES")
#define no puts("NO")
#define erase_duplicates(x) {sort(all(x));(x).resize(distance((x).begin(), unique(all(x))));}
using namespace std;
//using namespace __gnu_pbds;
void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

//#define int ll

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef set<int> si;
typedef multiset<int> msi;
typedef long double ld;
//typedef cc_hash_table<int, int, hash<int>> ht;

const int N = 30005;

set<int> adj[N], pom[N];

struct oper {
    char op;
    int a, b;

    void wypisz() {
        cout << op << ' ' << a+1 << ' ' << b+1 << '\n';
    }
};

void solve(const int r, const int n) {
    queue<int> q;
    for (auto it : adj[r]) q.push(it);

    vector<oper> ans;

    while (!q.empty()) {
        int v = q.front();
        q.pop();

        for (auto u : adj[v]) {
            if (u == r) continue;
            if (adj[r].find(u) == adj[r].end()) {
                ans.pb({'+', r, u});
                adj[r].insert(u);
                adj[u].insert(r);
                q.push(u);
            }
        }
    }

    for (int i = 0; i < n; i ++) {
        for (auto it : pom[i]) {
            if (adj[i].find(it) == adj[i].end()) {
                ans.pb({'+', i, it});
                adj[i].insert(it);
                adj[it].insert(i);
            }
        }
    }
    
    // usun wszystkie oprocz tych od korzenia

    for (int i = 1; i < n; i ++) {
        vi to_del;
        for (auto it : adj[i]) {
			if (it == r) continue;
            if (pom[i].find(it) == pom[i].end()) to_del.pb(it);
        }

        for (auto it : to_del) {
            ans.pb({'-', i, it});
            adj[i].erase(it);
            adj[it].erase(i);
        }
    }
    
    // usun od korzenia
    
    set<pii> S;
    for (auto it : adj[r]) {
		if (pom[r].find(it) == pom[r].end()) {
			S.insert({sajz(adj[it]), it});
		}
	}
	
	//debug("?");
	
	while (sajz(S)) {
		auto it = S.begin();
		int v = it->second;
		
		//debug(v, S);
		
		ans.pb({'-', r, v});
		
		//S.extract(it);
		S.erase(it);
		
		for (auto u : adj[v]) {
			if (S.find({sajz(adj[u]), u}) != S.end()) {
				//S.erase({sajz(adj[u]), u});
				S.erase(S.find({sajz(adj[u]), u}));
				adj[u].erase(v);
				S.insert({sajz(adj[u]), u});
			}
		}
	}
	
	//debug("po");

    int cnt_op = sajz(ans);

    cout << cnt_op << '\n';
    for (auto it : ans) it.wypisz();
}

int32_t main() {
	ios_base::sync_with_stdio(false);
	cout.tie(0);
	cin.tie(0);

    int n;
    cin >> n;

    int m;
    cin >> m;

    for (int i = 0; i < m; i ++) {
        int u, v;
        cin >> u >> v;
        u --, v --;
        adj[u].insert(v);
        adj[v].insert(u);
    }

    cin >> m;
    for (int i = 0; i < m; i ++) {
        int u, v;
        cin >> u >> v;
        u --, v --;
        pom[u].insert(v);
        pom[v].insert(u);
    }

    solve(0, n);

    return 0;
}