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#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
#define ll long long
#define ld long double
#define ull unsigned long long
void dbg_out() { cout << endl; }
template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cout << ' ' << H; dbg_out(T...); }
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)



void solve()
{
  ll n, m1, m2, u, v;
  cin >> n >> m1;
  map<pair<ll,ll>, bool> mp1,mp2;
  for(ll i = 0; i < m1; i++){
    cin >> u >> v;
    mp1[{u, v}] = true;
    mp1[{v, u}] = true;
  }
  cin >> m2;
  for(ll i = 0; i < m2; i++){
    cin >> u >> v;
    mp2[{u, v}] = true;
    mp2[{v, u}] = true;
  }

  //dodawanie od 1 do wszystkich innych
  vector<pair<ll,ll>> dodawanie,usuwanie;
  for(ll i = 2; i <= n; i++){
    if(mp1[{1, i}]) continue;
    mp1[{1, i}] = true;
    mp1[{i, 1}] = true;
    dodawanie.push_back({1, i});
  }

  for(auto el : mp2){
    if(mp1[el.first]) continue;
    mp1[{el.first.first, el.first.second}] = true;
    mp1[{el.first.second, el.first.first}] = true;
    dodawanie.push_back(el.first);
  }
  for(auto el : mp1){
    if(mp2[el.first] || el.second == false) continue;
    mp1[{el.first.first, el.first.second}] = false;
    mp1[{el.first.second, el.first.first}] = false;
    usuwanie.push_back(el.first);
  }
  cout << dodawanie.size() + usuwanie.size() << endl;
  for(auto el : dodawanie) cout << "+ " << el.first << " " << el.second << endl;
  for(auto el : usuwanie) cout << "- " << el.first << " " << el.second << endl;
}
 
int main()
{

  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);

// #ifndef ONLINE_JUDGE
//   freopen("../../in.in", "r", stdin);
//   freopen("../../out.out", "w", stdout);
// #endif
  
  solve();
  
}