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#include <bits/stdc++.h>
using namespace std;

vector<int> graf1[30001];

vector<pair<int,int>> kra1;
vector<pair<int,int>> kra2;

//laczenie z 1

bitset<30001> odw;
bitset<30001> odw2;
bitset<30001> is;
vector<string> zapy;

void dfs(int v, int pop)
{
    odw[v] = 1;
    if(v != 1 && pop != 1)
    {
        zapy.push_back("+ " + to_string(v) + " 1\n");
    }
    for(auto& it: graf1[v])
    {
        if(odw[it] == 0) dfs(it,v);
    }
}

void dfs2(int v, int pop)
{
    if((is[v] == 1 && v != pop) || v == 1) return;
    odw2[v] = 1;
    for(auto& it: graf1[v])
    {
        if(odw2[it] == 0) dfs2(it,v);
    }
    if(v != pop)
    zapy.push_back("- " + to_string(v) + " 1\n");
}

int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n,m1,m2;
    cin >> n >> m1;
    for(int i = 0; i < m1; i++)
    {
        int a,b;
        cin >> a >> b;
        graf1[a].push_back(b);
        graf1[b].push_back(a);
        kra1.push_back({a,b});
    }
    cin >> m2;
    for(int i = 0; i < m2; i++)
    {
        int a,b;
        cin >> a >> b;
        kra2.push_back({a,b});
    }
    dfs(1,0);
    for(auto& it: kra1)
    {
        if(it.first != 1 && it.second != 1)
        zapy.push_back("- " + to_string(it.first) + " " + to_string(it.second) + "\n");
    }
    for(auto& it: kra2)
    {
        if(it.first != 1 && it.second != 1)
        zapy.push_back("+ " + to_string(it.first) + " " + to_string(it.second) + "\n");
        else if(it.first != 1)
        {
            is[it.first] = 1;
        }
        else if(it.second != 1)
        {
            is[it.second] = 1;
        }
    }
    for(int i = 2; i <= n; i++)
    {
        if(odw2[i] == 0 && is[i] == 1) 
        {
            dfs2(i,i);
        }
    }
    cout << (int)zapy.size() << "\n";
    for(auto& it: zapy)
    {
        cout << it;
    }
}