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// {{{ file: alc.cc | time: 09:44 13.03.2024
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>

#define each(...)    for (auto& __VA_ARGS__)
#define rep(i, b, e) for (int i = (b); i <= (e); i++)
#define rev(i, b, e) for (int i = (e); i >= (b); i--)
#define mp make_pair
#define mt make_tuple
#define x first
#define y second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define endl '\n'
#define tC template<class

using namespace std;

tC T> using V = vector<T>;
tC T1, class T2> using P = pair<T1,T2>;
tC T, class C=greater<T>> using PQ = priority_queue<T,V<T>,C>;
tC T> int sz(const T& a) { return (int)a.size(); }
tC T> bool amin(T& a, T b) { return b < a ? a = b, 1 : 0; }
tC T> bool amax(T& a, T b) { return b > a ? a = b, 1 : 0; }

using ll = long long;
using pii = P<int,int>;
using pll = P<ll,ll>;
using vi = V<int>;
using vl = V<ll>;
using vs = V<string>;
using vpi = V<pii>;
using vpl = V<pll>;

const int oo = 1e9 + 1;
const ll OO = ll(1e18) + 1;

auto now() { return chrono::high_resolution_clock::now().time_since_epoch().count(); }
mt19937 rnd(4488);
tC T> T rand(T lo, T hi) { return uniform_int_distribution<T>{lo,hi}(rnd); }

struct Debug {
#ifdef SPONGE
  tC T>Debug operator<<(const T& x) {
    cerr<<"\033[1;33m"<<x<<"\033[0m";
#else
  tC T>Debug operator<<(const T&) {
#endif
    return *this;
  }
} dbg;
#define $(x) #x<<'='<<(x)<<' '

void boost()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.precision(15);
  cout.setf(ios::fixed,ios::floatfield);
  cerr.precision(15);
  cerr.setf(ios::fixed,ios::floatfield);
}

namespace { void solve(); }
// }}}

int main()
{
  boost();
  //rnd.seed(now());
  int t=1;
  //cin>>t;
  rep(i,1,t){
    //cout<<"Case #"<<i<<": ";
    solve();
  }
}

namespace {

const int N=30069;
int n,m[2];
vpi kraw[2];

void wczytaj()
{
  cin>>n;
  rep(i,0,1){
    cin>>m[i];
    rep(j,1,m[i]){
      int u,v;
      cin>>u>>v;
      if(u<v) kraw[i].pb(mp(u,v));
      else kraw[i].pb(mp(v,u));
    }
    sort(all(kraw[i]));
  }
}

bool odw[N];
vi pre,post,graf[N];
V<tuple<char,int,int>> odp;

void dfs(int v)
{
  if(!odw[v]){
    odw[v]=1;
    pre.pb(v);
    each(u:graf[v]) dfs(u);
    post.pb(v);
  }
}

void zbuduj(int i)
{
  pre.clear();
  post.clear();
  rep(v,1,n) odw[v]=0;
  rep(v,1,n) graf[v].clear();
  each([u,v]:kraw[i]) {graf[u].pb(v); graf[v].pb(u);}
  dfs(1);
}

bool jest_kraw(int i,pii e)
{
  return binary_search(all(kraw[i]),e);
}

void solve()
{
  wczytaj();

  zbuduj(0);

  each(v:pre) if(v!=1 && !jest_kraw(0,mp(1,v))) odp.pb(mt('+',1,v));

  each([u,v]:kraw[0]) if(u!=1 && !jest_kraw(1,mp(u,v))) odp.pb(mt('-',u,v));
  each([u,v]:kraw[1]) if(u!=1 && !jest_kraw(0,mp(u,v))) odp.pb(mt('+',u,v));

  zbuduj(1);

  each(v:post) if(v!=1 && !jest_kraw(1,mp(1,v))) odp.pb(mt('-',1,v));

  cout<<sz(odp)<<endl;
  each([t,u,v]:odp) cout<<t<<' '<<u<<' '<<v<<endl;
}

}