#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<ll,ll>;
#define fix(x) fixed << setprecision(x)
#define asc(x) x, vector<x>, greater<x>
#define rep(i, n) for(ll i = 0; i < n; i++)
#define all(x) (x).begin(),(x).end()
template<class T>bool chmin(T&a, const T&b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool chmax(T&a, const T&b){if(a<b){a=b;return 1;}return 0;}
vector<P> f(int a, int b){
    vector<P> res;
    if(!a){
        res.push_back({1,1});
        a = b;
    }
    if(!b){
        res.push_back({2,1});
        b = a;
    }
    if(a<0){
        int x = (int)2e8 / b;
        res.push_back({1,x});
        a += b*x;
    }
    if(b<0){
        int x = (int)5e8 / a;
        res.push_back({2,x});
        b += a*x;
    }
    while(a!=b){
        if(a>b){
            if(a%b){
                int x = a/b;
                res.push_back({1,-x});
                a %= b;
            }else{
                int x = a/b-1;
                res.push_back({1,-x});
                a = b;
            }
        }else{
            if(b%a){
                int x = b/a;
                res.push_back({2,-x});
                b %= a;
            }else{
                int x = b/a-1;
                res.push_back({2,-x});
                b = a;
            }
        }
    }
    return res;
}
int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int a,b,c,d;
    cin >> a >> b >> c >> d;
    if(a==c && b==d){
        cout << "0\n";
        return 0;
    }else if((!a&&!b) || (abs(__gcd(c,d))!=abs(__gcd(a,b)))){
        cout << "-1\n";
        return 0;
    }
    auto ans1 = f(a,b);
    auto ans2 = f(c,d);
    cout << ans1.size()+ans2.size() << '\n';
    reverse(all(ans2));
    for(auto [p,q]:ans1){
        cout << p << " " << q << '\n';
        if(p==1) a += b * q;
        else b += a * q;
    }
    for(auto [p,q]:ans2){
        q *= -1;
        cout << p << " " << q << '\n';
        if(p==1) a += b * q;
        else b += a * q;
    }
    //cout << a << " " << b << '\n';
    return 0;
}