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#include <bits/stdc++.h>
#include <ranges>
#define ft first
#define sc second
#define pb push_back
#define FOR(i,n) for(int i=0; i<n; i++)
#define FORX(i,a,b) for(int i=(a); i<=(b); i++)
#define watch(x) cerr << (#x) << " == " << (x) << endl
typedef long long ll;
typedef long double ld;
using namespace std;

const int N = 3e4, M = 5e4;
vector<int> gs[N+5], gd[N+5];
bool vis[N+5];
vector<pair<int,int>> add_base, add, del, del_base;

void dfs(int a) {
    vis[a] = 1;
    for (const int &b : gs[a]) {
        if (!vis[b]) {
            if (a != 1) {
                add_base.pb({1,b});
            }
            dfs(b);
        }
    }
}

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

int n,ms,md;
cin>>n;

cin>>ms;
FOR(i,ms){
    int a,b;
    cin>>a>>b;
    gs[a].pb(b);
    gs[b].pb(a);
}

cin>>md;
FOR(i,md){
    int a,b;
    cin>>a>>b;
    gd[a].pb(b);
    gd[b].pb(a);
}

FORX(i,1,n){
    sort(gs[i].begin(),gs[i].end());
    sort(gd[i].begin(),gd[i].end());
}

dfs(1);

FORX(i,2,n){
    for (const int &j : gd[i]) {
        if (j<i || binary_search(gs[i].begin(), gs[i].end(), j)) {continue;}
        add.pb({i,j});
    }
}

FORX(i,2,n){
    for (const int &j : gs[i]) {
        if (j<i || binary_search(gd[i].begin(), gd[i].end(), j)) {continue;}
        del.pb({i,j});
    }
}

for (const auto &p : views::reverse(add_base)) {
    if (!binary_search(gd[1].begin(), gd[1].end(), p.sc)) {
        del_base.pb(p);
    }
}

cout << add_base.size() + add.size() + del.size() + del_base.size() << "\n";

for (const auto &p : add_base) {
    cout << "+ " << p.ft << " " << p.sc << "\n";
}
for (const auto &p : add) {
    cout << "+ " << p.ft << " " << p.sc << "\n";
}
for (const auto &p : del) {
    cout << "- " << p.ft << " " << p.sc << "\n";
}
for (const auto &p : del_base) {
    cout << "- " << p.ft << " " << p.sc << "\n";
}

return 0;
}