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

vector<vector<int>>g;
vector<vector<int>>g2;
set<pair<int, int>>s;
set<pair<int, int>>odp;
vector<bool>odw;
vector<bool>odw2;
queue<int>add;
queue<int>odjac;

void dfs(int x)
{
    odw[x]=1;
    if(x!=1&&s.find({1, x})==s.end())
    {
        add.push(1);
        add.push(x);
        s.insert({1, x});
    }
    for(auto e:g[x])
    {
        if(!odw[e])
            dfs(e);
    }
}

void dfsdel(int x)
{
    odw2[x]=1;
    for(auto e:g2[x])
    {
        if(!odw2[e])
            dfsdel(e);
    }
    if(x!=1&&odp.find({1, x})==odp.end())
    {
        odjac.push(1);
        odjac.push(x);
    }
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, m1, m2;
    cin>>n>>m1;
    g.resize(n+1);
    g2.resize(n+1);
    odw.resize(n+1, 0);
    odw2.resize(n+1, 0);
    int a, b;
    for(int i=0; i<m1; i++)
    {
        cin>>a>>b;
        g[a].push_back(b);
        g[b].push_back(a);
        if(b<a)
            swap(a, b);
        s.insert({a, b});
        //s.insert({b, a});
    }
    cin>>m2;
    for(int i=0; i<m2; i++)
    {
        cin>>a>>b;
        g2[a].push_back(b);
        g2[b].push_back(a);
        if(b<a)
            swap(a, b);
        odp.insert({a, b});
    }
    dfs(1);
    for(auto x:odp)
    {
        if(x.first!=1&&s.find(x)==s.end())
        {
            add.push(x.first);
            add.push(x.second);
        }
    }
    for(auto x:s)
    {
        if(x.first!=1&&odp.find(x)==odp.end())
        {
            odjac.push(x.first);
            odjac.push(x.second);
        }
    }
    dfsdel(1);
    cout<<(add.size()+odjac.size())/2<<"\n";
    while(!add.empty())
    {
        a=add.front();
        add.pop();
        b=add.front();
        add.pop();
        cout<<"+ "<<a<<" "<<b<<"\n";
    }
    while(!odjac.empty())
    {
        a=odjac.front();
        odjac.pop();
        b=odjac.front();
        odjac.pop();
        cout<<"- "<<a<<" "<<b<<"\n";
    }
}