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#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <cstring>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <vector>
#include <climits>
using namespace std;
 
using ll = long long;
using ul = unsigned long long;
using db = long double;
using pi = pair<int, int>;
using vi = vector<int>;
using vl = vector<ll>;
using vpi = vector<pi>;
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define x first
#define y second

template<class T> using V = vector<T>; 
template<class T, size_t SZ> using AR = array<T,SZ>; 

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define each(a,x) for (auto& a: x)
 
#define sz(x) int((x).size())
#define all(x) (x).begin(), (x).end()
#define rep(i,a,b) for(int i = (a); i < (b); i++)
#define per(i,a,b) for(int i = (b) - 1; i >= (a); i--)

#ifdef LOCAL 
template<class A, class B> auto& operator<<(auto &o, pair<A, B> p) { return o << '(' << p.x << ", " << p.y << ')'; }
auto& operator<<(auto& o, auto a) {
    o << "{";
    for (auto b : a) o << b << ", ";
    return o << "}";
}
void dump(auto... x) { ((cerr << x << ", "), ...) << "\n"; }
#define debug(x...) cerr << "[" #x "]: ", dump(x)
#else
#define debug(...) ;
#endif

template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
template<class T> int lwb(V<T>& a, const T& b) { return int(lb(all(a),b)-bg(a)); }
template<class T> int upb(V<T>& a, const T& b) { return int(ub(all(a),b)-bg(a)); }
template<class T> void remDup(vector<T>& v) { sort(all(v)); v.erase(unique(all(v)),end(v)); }

// #define DO_ASSERT

const int N = 30'064;
bool vis[N];
set<int> g[N];
set<int> gp[N];
vpi ed;
int n;
vector<tuple<char, int, int>> res;

constexpr int MAX_OPS = 2e5;
int ops = 0;

bool have_common_neighbour(int a, int b) {
    if (sz(g[a]) > sz(g[b])) swap(a, b);
    for (auto c : g[a]) {
        if (g[b].count(c)) return true;
    }
    debug(a, b);
    debug(g[a]);
    debug(g[b]);
    return false;
}

void force_add_edge(int a, int b) {
#ifdef DO_ASSERT
    assert(have_common_neighbour(a, b));
    assert(!g[a].count(b));
    assert(!g[b].count(a));
    assert(++ops <= MAX_OPS);
#endif
    res.eb('+', a+1, b+1);
    g[a].insert(b);
    g[b].insert(a);
}

void force_del_edge(int a, int b) {
#ifdef DO_ASSERT
    assert(g[a].count(b));
    assert(g[b].count(a));
    assert(have_common_neighbour(a, b));
    assert(++ops <= MAX_OPS);
#endif
    res.eb('-', a+1, b+1);
    g[a].erase(b);
    g[b].erase(a);
}

void dfs1(int u = 0) {
    vis[u] = true;
    for (int v : g[u]) {
        if (vis[v]) continue;
        if (!g[0].count(v)) {
            force_add_edge(0, v);
        }
        dfs1(v);
    }
}

void dfs2(int u = 0) {
    vis[u] = true;
    for (int v : gp[u]) {
        if (vis[v]) continue;
        dfs2(v);
    }
    if (u == 0) return;
    if (!gp[0].count(u)) {
        force_del_edge(0, u);
    }
}

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);

    cin >> n;

    int m;
    cin >> m;
    rep(i,0,m) {
        int x, y;
        cin >> x >> y;
        x--; y--;
        g[x].insert(y);
        g[y].insert(x);
    }

    cin >> m;
    ed.resize(m);
    rep(i,0,m) {
        int x, y;
        cin >> x >> y;
        x--; y--;
        gp[x].insert(y);
        gp[y].insert(x);
        ed[i] = {x, y};
    }
    
    dfs1();
    memset(vis, 0, sizeof vis);

    for (auto [x, y] : ed) {
        if (g[x].count(y)) continue;
        force_add_edge(x, y);
    }

    vpi bad_edges;

    rep(x,1,n) {
        for (auto y : g[x]) {
            if (y == 0) continue;
            if (y < x) continue;
            if (gp[x].count(y)) continue;
            bad_edges.eb(x, y);
        }
    }

    for (auto [x, y] : bad_edges) {
        force_del_edge(x, y);
    }

    dfs2();

    cout << sz(res) << '\n';
    for (auto [c, x, y] : res) {
        cout << c << ' ' << x << ' ' << y << '\n';
    }

    // cout << "OK";

    return 0;
}