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#include <bits/stdc++.h>

using namespace std;

#define st first
#define nd second
typedef long long ll;
typedef long double ld;
typedef __int128 int128;
typedef vector<int> vi;
typedef pair<int,int> pi;
typedef pair<double,double> pd;
typedef pair<ll,ll> pl;

const int max_n = 3e4+7;

vi g[max_n];
vi g2[max_n];
set<pi> start;
set<pi> target;

bool odw[max_n];
queue<int> q;
vi kolejka;

vector<pair<char,pi>> ans;

int main(){

    ios::sync_with_stdio(0);
    cin.tie(0);

    int n,m1;
    cin >> n >> m1;

    for(int i = 1; i <= m1; i++){
        int a,b;
        cin >> a >> b;
        if(a > b) swap(a,b);
        g[a].push_back(b);
        g[b].push_back(a);
        start.insert({a,b});
    }

    int m2;
    cin >> m2;
    for(int i = 1; i <= m2; i++){
        int a,b;
        cin >> a >> b;
        if(a > b) swap(a,b);
        g2[a].push_back(b);
        g2[b].push_back(a);
        target.insert({a,b});
    }

    //bfs
    q.push(1);
    odw[1] = 1;

    while(!q.empty()){
        int v = q.front();
        q.pop();
        if(v != 1) kolejka.push_back(v);

        for(auto x:g[v]){
            if(odw[x]) continue;
            q.push(x);
            odw[x] = 1;
        }
    }

    for(int i = 1;i <= n; i++) odw[i] = 0;

    for(auto x:kolejka){
        if(start.count({1,x})) continue;
        ans.push_back({'+',{1,x}});
    }

    for(auto x:target){
        if(start.count(x)) continue;
        if(x.st == 1) continue;
        ans.push_back({'+',x});
    }

    for(auto x:start){
        if(target.count(x)) continue;
        if(x.st == 1) continue;
        ans.push_back({'-',x});
    }

    int wierzcholek = 0;
    for(auto x:target){
        if(x.st == 1){
            wierzcholek = x.nd;
            break;
        }
    }

    //cout << "wierzcholek: " << wierzcholek << '\n';

    q.push(wierzcholek);
    odw[wierzcholek] = 1;
    kolejka.clear();
    
    while(!q.empty()){
        int v = q.front();
        q.pop();
        //cout << "kolejka, v: " << v << '\n';
        if(v != 1) kolejka.push_back(v);

        for(auto x:g2[v]){
            if(odw[x]) continue;
            q.push(x);
            odw[x] = 1;
        }
    }

    reverse(kolejka.begin(),kolejka.end());


    for(auto x:kolejka){
        if(target.count({1,x})) continue;
        ans.push_back({'-',{1,x}});
    }

    cout << ans.size() << '\n';
    for(auto x:ans)
        cout << x.st << ' ' << x.nd.st << ' ' << x.nd.nd << '\n';

    return 0;
}

//g++ -O3 -static -Wall .cpp -std=c++17