#include <bits/stdc++.h>
//#include <atcoder/all>
using namespace std;
//using namespace atcoder;
//using mint = modint1000000007;
//const int mod = 1000000007;
//using mint = modint998244353;
//const int mod = 998244353;
//const int INF = 1e9;
//const long long LINF = 1e18;
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rep2(i,l,r)for(int i=(l);i<(r);++i)
#define rrep(i, n) for (int i = (n-1); i >= 0; --i)
#define rrep2(i,l,r)for(int i=(r-1);i>=(l);--i)
#define all(x) (x).begin(),(x).end()
#define allR(x) (x).rbegin(),(x).rend()
#define endl "\n"
#define P pair<int,int>
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
long long gcd(long long a, long long b) {
	if (b == 0) return a;
	else return gcd(b, a%b);
}
int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int a, b, c, d; cin >> a >> b >> c >> d;
	int g0 = gcd(abs(a), abs(b));
	int g1 = gcd(abs(c), abs(d));
	if (g0 != g1) {
		cout << -1 << endl;
		return 0;
	}
	vector<P>v0, v1;
	auto f = [&](int &a, int &b, vector<P> &v)->void {
		if (a >= 0) return;
		v.emplace_back(1, 1);
		a += b;
		v.emplace_back(2, -1);
		b -= a;
		v.emplace_back(1, 1);
		a += b;
		// (a,b)->(b,-a)
	};
	auto g = [&](int  & a, int &b, vector<P> &v)->void {
		if (b >= 0) return;
		v.emplace_back(2, 1);
		b += a;
		v.emplace_back(1, -1);
		a -= b;
		v.emplace_back(2, 1);
		b += a;
		// (a,b)->(-b,a)
	};
	auto h = [&](int  & a, int &b, vector<P> &v)->void {
		// (a,b)->(0,g) or (0,g)
		while ((0 != a) && (0 != b)) {
			if (a >= b) {
				v.emplace_back(1, -(a / b));
				a = a % b;
			}
			else {
				v.emplace_back(2, -(b / a));
				b = b % a;
			}
		}
		if (0 != b) {
			v.emplace_back(1, 1);
			a += b;
			v.emplace_back(2, -1);
			b -= a;
		}
		// (a,b)->(g,0)
	};
	if (a < 0)f(a, b, v0);
	if (a < 0)f(a, b, v0);
	if (b < 0)g(a, b, v0);
	h(a, b, v0);
	if (c < 0)f(c, d, v1);
	if (c < 0)f(c, d, v1);
	if (d < 0)g(c, d, v1);
	h(c, d, v1);
	reverse(all(v1));
	cout << v0.size() + v1.size() << endl;
	rep(i, v0.size())cout << v0[i].first << " " << v0[i].second << endl;
	rep(i, v1.size())cout << v1[i].first << " " << -1 * v1[i].second << endl;
	return 0;
}