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#include <bits/stdc++.h>
using namespace std;
//{
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define FORD(i, a, b) for(int i = (a); i >= (b); --i)
#define VAR(v, i) __typeof(i) v=(i)
#define all(v) (v).begin(),(v).end()
#define FORE(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i)


#define PII pair<int,int>
#define st first
#define nd second
#define pb push_back
#define lint long long int
#define VI vector<int>

#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
  enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
  ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
  *this << "[";
  for (auto it = d.b; it != d.e; ++it)
	*this << ", " + 2 * (it == d.b) << *it;
  ris << "]";
}
};
//{
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "

#define make( x) int (x); scanf("%d",&(x));
#define make2( x, y) int (x), (y); scanf("%d%d",&(x),&(y));
#define make3(x, y, z) int (x), (y), (z); scanf("%d%d%d",&(x),&(y),&(z));
#define make4(x, y, z, t) int (x), (y), (z), (t); scanf("%d%d%d%d",&(x),&(y),&(z),&(t));
#define makev(v,n) VI (v); FOR(i,0,(n)) { make(a); (v).pb(a);} 
#define IOS ios_base::sync_with_stdio(0)
#define HEAP priority_queue

#define read( x) scanf("%d",&(x));
#define read2( x, y) scanf("%d%d",&(x),&(y));
#define read3(x, y, z) scanf("%d%d%d",&(x),&(y),&(z));
#define read4(x, y, z, t) scanf("%d%d%d%d",&(x),&(y),&(z),&(t));
#define readv(v,n) FOR(i,0,(n)) { make(a); (v).pb(a);}
#define jeb() fflush(stdout);
//}

int n, m1, m2;

VI g1[30005];
VI g2[30005];

bitset<30000> g1mask[30005];
bitset<30000> g2mask[30005];

vector<PII> dodaj;
vector<PII> ujmij;

void odpowiedz() {
	int ruchy = dodaj.size() + ujmij.size();
	printf("%d\n", ruchy);
	FOR(i,0,dodaj.size()) {
		printf("+ %d %d\n", dodaj[i].st + 1, dodaj[i].nd + 1);
	}

	FOR(i,0,ujmij.size()) {
		printf("- %d %d\n", ujmij[i].st + 1, ujmij[i].nd + 1);
	}
}

void wczytaj() {
	read(n);
	read(m1);
	FOR(i,0,m1) {
		make2(a, b); a--; b--;
		g1[a].pb(b);
		g1[b].pb(a);
		g1mask[a].set(b);
		g1mask[b].set(a);
	}
	read(m2);
	FOR(i,0,m2) {
		make2(a, b); a--; b--;
		g2[a].pb(b);
		g2[b].pb(a);
		g2mask[a].set(b);
		g2mask[b].set(a);
	}
}

int visited[30005];
VI kolej1, kolej2;

void dfs1(int v) {
	visited[v] = 1;
	kolej1.pb(v);
	FORE(i, g1[v]) {
		int w = *i;
		if (!visited[w]) {
			dfs1(w);
		}
	}
}

void dfs2(int v) {
	visited[v] = 1;
	kolej2.pb(v);
	FORE(i, g2[v]) {
		int w = *i;
		if (!visited[w]) {
			dfs2(w);
		}
	}
}


int main() {
	wczytaj();

	FOR(i,0,n) visited[i] = 0;
	dfs1(0);
	FOR(i,0,n) visited[i] = 0;
	dfs2(0);
	
	FOR(i,0,n) {
		int v = kolej1[i];
		if (v == 0) continue;
		if (!g1mask[0].test(v)) {
			dodaj.pb({0,v});
		}
	}
	
	FOR(i,1,n) {
		FORE(j, g2[i]) {
			int v = *j;
			if (v > i && !g1mask[i].test(v)) {
				dodaj.pb({i, v});
			}
		}
	}
	
	FOR(i,1,n) {
		FORE(j, g1[i]) {
			int v = *j;
			if (v > i && !g2mask[i].test(v)) {
					ujmij.pb({i, v});
			}
		}
	}

	reverse(all(kolej2));

	FOR(i,0,n) {
		int v = kolej2[i];
		if (v == 0) continue;
		if (!g2mask[0].test(v)) {
			ujmij.pb({0,v});
		}
	}


	odpowiedz();
}