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#include <cstdio>
#include <map>
#include <queue>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <vector>

template <typename T> T min_of(T a, T b) { return a < b ? a : b; }
template <typename T> T max_of(T a, T b) { return a > b ? a : b; }

const char PLUS = '+';
const char MINUS = '-';

typedef std::pair<int, int> _edge;

struct Op {
  char op;
  _edge e;
  Op(char o, _edge _e) : op(o), e(_e) {}
};

struct Graph {
  std::vector<std::set<int>> nodes;
  std::set<_edge> edges;
  std::set<_edge> addons;
  std::set<_edge> rst;
  std::unordered_map<int, int> prevs;
  std::unordered_set<int> visited;
  std::map<_edge, int> removes;

  inline std::pair<int, int> mk_edge(int a, int b) { return std::make_pair(min_of(a, b), max_of(a, b)); }

  void save_edge(_edge &edge) {
    edges.insert(edge);
    nodes[edge.first].insert(edge.second);
    nodes[edge.second].insert(edge.first);
  }

  void forget_edge(_edge &ee) {
    edges.erase(ee);
    nodes[ee.first].erase(ee.second);
    nodes[ee.second].erase(ee.first);
  }

  void mutate(Graph &tgt, std::vector<Op> &resp) {
    std::vector<Op> uncompressed;
    for (auto &t_edge : tgt.edges) {
      if (!edges.contains(t_edge)) {
        add_edge(t_edge, uncompressed);
      }
    }
    std::vector<std::pair<int, int>> to_remove;
    for (auto &edge : edges) {
      if (!tgt.edges.contains(edge)) {
        to_remove.push_back(edge);
      }
    }
    for (auto &edge : to_remove) {
      remove_edge(edge, uncompressed);
    }

    compress(uncompressed, resp);
  
  }

  void lossless(std::vector<Op> &uncompressed, std::vector<Op> &resp) {
    for (Op &op : uncompressed) {
      resp.push_back(op);
    }
  }

  void compress(std::vector<Op> &uncompressed, std::vector<Op> &resp) {
    for (Op op : uncompressed) {
      if (op.op == PLUS) {
        if (!addons.contains(op.e) && !rst.contains(op.e)) {
          resp.push_back(op);
          addons.insert(op.e);
        }
      } else {
        if (removes[op.e] == 1) {
          resp.push_back(op);
        } else {
          removes[op.e] -= 1;
          if (!addons.contains(op.e)) {
            rst.insert(op.e);
          }
        }
      }
    }
  }

  void _bsf(int start, int end) {
    std::queue<int> next;
    prevs.clear();
    visited.clear();
    next.push(start);
    visited.insert(start);
    while (!next.empty()) {
      int current = next.front();
      next.pop();
      for (int tg : nodes[current]) {
        if (visited.contains(tg)) {
          continue;
        }
        prevs[tg] = current;
        if (tg == end) {
          return;
        }
        next.push(tg);
        visited.insert(tg);
      }
    }
  }

  void r_increase(_edge &edge) {
    if (removes.contains(edge)) {
      removes[edge] += 1;
    } else {
      removes[edge] = 1;
    }
  }

  void save_ops(_edge edge, char action, std::vector<Op> &resp) {
    _bsf(edge.first, edge.second);
    std::vector<int> path;
    for (int current = prevs[edge.second]; current != edge.first; current = prevs[current]) {
      path.push_back(current);
    }
    int focal = edge.second;
    auto it = path.begin();
    for (++it; it != path.end(); ++it) {
      _edge e = mk_edge(focal, *it);
      resp.push_back(Op(PLUS, e));
      if (action == PLUS) {
        save_edge(e);
      }
    }
    resp.push_back(Op(action, edge));
    if (action == MINUS) {
      r_increase(edge);
      for (--it; it != path.begin(); --it) {
        _edge e = mk_edge(focal, *it);
        r_increase(e);
        resp.push_back(Op(MINUS, e));
        forget_edge(e);
      }
    }
  }

  void add_edge(std::pair<int, int> edge, std::vector<Op> &resp) {
    save_ops(edge, PLUS, resp);
    save_edge(edge);
  }

  void remove_edge(std::pair<int, int> edge, std::vector<Op> &resp) {
    forget_edge(edge);
    save_ops(edge, MINUS, resp);
  }

  void load(int N) {
    for (int n = 0; n < N; ++n) {
      nodes.push_back(std::set<int>());
    }
    int E, a, b;
    scanf("%d", &E);
    for (int e = 0; e < E; ++e) {
      scanf("%d%d", &a, &b);
      --a, --b;
      nodes[a].insert(b);
      nodes[b].insert(a);
      edges.insert(std::make_pair(min_of(a, b), max_of(a, b)));
    }
  }

  void print() {
    int id = 1;
    for (auto edges : nodes) {
      printf("%3d: ", id);
      ++id;
      for (int e : edges) {
        printf("%d ", e + 1);
      }
      puts("");
    }
    puts("");
  }
};

int main() {
  int n;
  scanf("%d", &n);
  Graph a, b;
  a.load(n);
  b.load(n);

  std::vector<Op> ops;
  a.mutate(b, ops);

  printf("%d\n", (int)ops.size());
  for (Op &op : ops) {
    printf("%c %d %d\n", op.op, op.e.first + 1, op.e.second + 1);
  }

  return 0;
}