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#include<bits/stdc++.h>
using namespace std;
constexpr int N = 30007;

vector<int> wynikowy[N];
vector<int> wstepny[N];
vector<int> preorder;
vector<int> postorder;
vector<pair<int,int>> wstV;
vector<pair<int,int>> wynV;
int n,m1,m2;
int a,b;
bool odw[N];
void dfsbud(int x)
{
    for(int y:wstepny[x])
    {
        if(odw[y])
            continue;
        odw[y]=1;
        preorder.push_back(y);
        dfsbud(y);
    }
}
void dfsruj(int x)
{
    for(int y:wynikowy[x])
    {
        if(odw[y])
            continue;
        odw[y]=1;
        dfsruj(y);
        postorder.push_back(y);
    }
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
    cin >> m1;
    for(int i=0;i<m1;i++)
        {
            cin >> a >> b;
            wstepny[a].push_back(b);
            wstepny[b].push_back(a);
            wstV.push_back({min(a,b),max(a,b)});
        }
    cin >> m2;
    for(int i=0;i<m2;i++)
        {
            cin >> a >> b;
            wynikowy[a].push_back(b);
            wynikowy[b].push_back(a);
            wynV.push_back({min(a,b),max(a,b)});
        }
    odw[1]=1;
    for(int y:wstepny[1])
        odw[y]=1;
    for(int y:wstepny[1])
    {
        dfsbud(y);
    }
    for(int i=0;i<=n;i++)
        odw[i]=0;
    odw[1]=1;
    for(int y:wynikowy[1])
        odw[y]=1;
    for(int y:wynikowy[1])
    {
        dfsruj(y);
    }
    cout << m1+m2+n-1+n-1-wstepny[1].size()-wynikowy[1].size()-wstepny[1].size()-wynikowy[1].size() << "\n";
    for(auto x:preorder)
    {
        cout << "+ 1 " << x << "\n";
    }
    for(auto x:wstV)
    {
        if(x.first==1)
            continue;
        cout << "- " << x.first << " " << x.second << "\n";
    }
    for(auto x:wynV)
    {
        if(x.first==1)
            continue;
        cout << "+ " << x.first << " " << x.second << "\n";
    }
    for(auto x:postorder)
    {
        cout << "- 1 " << x << "\n";
    }
    return 0;
}