#include <iostream>
#include <vector>
#include <map>
#define repeat(i,n) for (int i = 0; (i) < int(n); ++(i))
using namespace std;

int main() {
    int a, b, c, d; cin >> a >> b >> c >> d;
    vector<pair<int, int> > e;
    if (a == c and b == c) {
        repeat (i,c) e.emplace_back(i, (i+1)%c);
    } else if (a == 1) {
        repeat (i,b-1) e.emplace_back(i+1, i+2);
    } else if (b == 1) {
        repeat (i,a-1) e.emplace_back(i == 0 ? 0 : i+1, i+2);
    } else {
        throw 0;
        int A = 1000000;
        int B = 2000000;
        int C = 3000000;
        map<int,int> tr;
        repeat (i,a-c) e.emplace_back(A+i, A+i+1);
        repeat (i,b-c) e.emplace_back(B+i, B+i+1);
        repeat (i,c-1) e.emplace_back(C+i, C+i+1);
        if (a == c) A = C;
        if (b == c) B = C;
        tr[A+a-c] = C;
        tr[B+b-c] = C;
        map<int,int> compress;
        compress[A] = 0;
        compress[B] = 1;
        auto name = [&](int & i) {
            if (tr.count(i)) i = tr[i];
            if (not compress.count(i)) { int size = compress.size(); compress[i] = size; }
            i = compress[i];
        };
        for (auto & it : e) {
            name(it.first);
            name(it.second);
        }
    }
    if (e.size() > d) {
        cout << -1 << endl;
    } else {
        cout << a+b-c << ' ' << e.size() << endl;
        for (auto it : e) cout << it.first << ' ' << it.second << endl;
    }
    return 0;
}