#include <iostream>
#include <algorithm>
#include <iomanip>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <tuple>
#include <cmath>
#include <numeric>
#include <functional>
#include <cassert>

#define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl;
#define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl;

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

using namespace std;
typedef long long ll;

template<typename T>
vector<vector<T>> vec2d(int n, int m, T v){
    return vector<vector<T>>(n, vector<T>(m, v));
}

template<typename T>
vector<vector<vector<T>>> vec3d(int n, int m, int k, T v){
    return vector<vector<vector<T>>>(n, vector<vector<T>>(m, vector<T>(k, v)));
}

template<typename T>
void print_vector(vector<T> v, char delimiter=' '){
    if(v.empty()) {
        cout << endl;
        return;
    }
    for(int i = 0; i+1 < v.size(); i++) cout << v[i] << delimiter;
    cout << v.back() << endl;
}

using P = pair<int, int>;

vector<P> normalize_path(int a, int b){
    vector<P> ans;
    while(true){
        ans.push_back(P(a, b));
        if(a == 0){
            a = b;
            continue;
        }
        if(b == 0){
            b = a;
            continue;
        }
        if(abs(a) == abs(b)) {
            if(a < 0){
                a = -a;
                ans.push_back(P(a, b));
            }
            if(b < 0){
                b = -b;
                ans.push_back(P(a, b));
            }
            break;
        }
        
        if(abs(a) < abs(b)){
            int c = abs(b)/abs(a);
            if(b < 0) c *= -1;
            b -= abs(a)*c;
        }else{
            int c = abs(a)/abs(b);
            if(a < 0) c *= -1;
            a -= abs(b)*c;
        }
    }
    return ans;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << setprecision(10) << fixed;
    int a, b, c, d; cin >> a >> b >> c >> d;
    int g1 = gcd(abs(a), abs(b));
    int g2 = gcd(abs(c), abs(d));
    if(g1 != g2){
        cout << -1 << endl;
        return 0;
    }
    if(a == 0 && b == 0){
        cout << 0 << endl;
        return 0;
    }
    auto path = normalize_path(a, b);
    auto path1 = normalize_path(c, d);
    reverse(path1.begin(), path1.end());
    for(int i = 1; i < path1.size(); i++){
        path.push_back(path1[i]);
    }
    cout << path.size()-1 << endl;
    for(int i = 1; i < path.size(); i++){
        auto [x0, y0] = path[i-1];
        auto [x1, y1] = path[i];
        if(x0 == x1){
            int c = (y1-y0)/x0;
            cout << 2 << ' ' << c << endl;
        }else{
            assert(y0 == y1);
            int c = (x1-x0)/y0;
            cout << 1 << ' ' << c << endl;
        }
    }
}