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#include <algorithm>
#include <cstdint>
#include <iostream>
#include <iterator>
#include <string>
#include <unordered_set>
#include <utility>
#include <vector>

using IVec = std::vector<int>;
using PVec = std::vector<std::pair<int, int>>;

void printVec(std::string pre, const IVec& v)
{
    std::cout << pre << " ";
    for(auto& el: v) {
        std::cout << el << " ";
    }
    std::cout << "\n";
}

struct AdjacentMap
{
    AdjacentMap(int size): list(size) {};

    AdjacentMap getDiff(const AdjacentMap& o) const {
        AdjacentMap out(list.size());

        for(auto i=0; i<list.size(); i++) {
            std::unordered_set<std::uint16_t> dest{};

            //if (list[i].size() > o.list[i].size()) {
                for(auto& el: list[i]) {
                    if(!o.list[i].contains(el)) {
                        dest.insert(el);
                    }
                }
            //} else {
            //    for(auto& el: o.list[i]) {
            //        if(!list[i].contains(el)) {
            //            dest.insert(el);
            //        }
            //    }
            //}

            out.list[i] = std::move(dest);
        }

        return out;
    };

    PVec getPairs() const {
        PVec out{};   
        auto idx{1};
        for(auto& v: list) {
            for(auto& e: v) {
                out.emplace_back(std::make_pair(idx, e));
            }
            idx++;
        }
        return out;
    };

    void add(int x, int y) {
        auto a = std::min(x, y);
        auto b = std::max(x, y);
        list[a-1].insert(b);
    };

    bool get(int x, int y) {
        auto a = std::min(x, y);
        auto b = std::max(x, y);
        return list[a-1].contains(b);
    };

    void print() const {
        std::cout << "AdjacentMap\n";
        auto idx{1};
        for(auto& v: list) {
            std::cout << idx++ << ": ";
            for(auto e: v) {
                std::cout << e << " ";
            }
            std::cout << "\n";
        }
    };

    // get edges for vert v
    IVec getEdges(int v) const {
        IVec out{};
        auto idx{1};
        for(auto& i: list) {
            if(idx > v) break;
            if(idx == v) {
                for(auto j: i) {
                    out.push_back(j);
                }
            }
            for(auto j: i) {
                if(j == v) {
                    out.push_back(idx);
                }
            }
            idx++;
        }
        return out;
    }

    bool hasCommon(const IVec& x, const IVec& y) const {
        IVec out{};
        if(x.size() > y.size()) {
            std::set_intersection(x.begin(), x.end(), y.begin(), y.end(), std::inserter(out, out.begin()));
        } else {
            std::set_intersection(y.begin(), y.end(), x.begin(), x.end(), std::inserter(out, out.begin()));
        }
        //printVec("comm", out);

        return out.size() > 0;
    }

    std::vector<std::unordered_set<std::uint16_t>> list{};
};

void solve(AdjacentMap& src, const AdjacentMap& dst)
{
    //src.print();
    //dst.print();

    std::vector<std::string> steps{};

    auto toAdd = dst.getDiff(src);
    //toAdd.print();
    auto a = toAdd.getPairs();
    for(auto i: a) {
        //std::cout << i.first << "-" << i.second << "\n";
        auto xE = src.getEdges(i.first);
        auto yE = src.getEdges(i.second);
        //printVec("x", xE);
        //printVec("y", yE);
        if(src.hasCommon(xE, yE)) {
            steps.push_back("+ " + std::to_string(i.first) + " " + std::to_string(i.second));
        } else {
            steps.push_back("+ " + std::to_string(xE[0]) + " " + std::to_string(yE[0]));
            steps.push_back("+ " + std::to_string(i.first) + " " + std::to_string(i.second));
            steps.push_back("- " + std::to_string(xE[0]) + " " + std::to_string(yE[0]));
            src.add(i.first, i.second);
        }
    }

    auto toRemove = src.getDiff(dst);
    //toRemove.print();
    auto r = toRemove.getPairs();
    for(auto i: r) {
        //std::cout << i.first << "-" << i.second << "\n";
        auto xE = src.getEdges(i.first);
        auto yE = src.getEdges(i.second);
        //printVec("x", xE);
        //printVec("y", yE);
        if(src.hasCommon(xE, yE)) {
            steps.push_back("- " + std::to_string(i.first) + " " + std::to_string(i.second));
        } else {
            steps.push_back("+ " + std::to_string(xE[0]) + " " + std::to_string(yE[0]));
            steps.push_back("- " + std::to_string(i.first) + " " + std::to_string(i.second));
            steps.push_back("- " + std::to_string(xE[0]) + " " + std::to_string(yE[0]));
            src.add(i.first, i.second);
        }
    }

    std::cout << steps.size() << "\n";
    for(auto& s: steps) {
        std::cout << s << "\n";
    }
};

int main(int argc, char** argv)
{
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(NULL);

    auto vnum{0};
    std::cin >> vnum;
    AdjacentMap amap{vnum}, bmap{vnum};

    auto srcE{0};
    std::cin >> srcE;

    for (auto i=0; i<srcE; i++) {
        auto a{0}, b{0};
        std::cin >> a >> b;
        amap.add(a, b);
    }

    auto destE{0};
    std::cin >> destE;

    for (auto i=0; i<destE; i++) {
        auto a{0}, b{0};
        std::cin >> a >> b;
        bmap.add(a, b);
    }

    if (vnum == 2) {
        std::cout << "0\n";
        return 0;
    }

    solve(amap, bmap);

    return 0;
}