#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef vector< int > vi;
typedef vector< vi > vvi;
typedef vector< ll > vl;
typedef vector< vl > vvl;
typedef pair< int, int > pii;
typedef vector< pii > vp;
typedef vector< double > vd;
typedef vector< vd > vvd;
typedef vector< string > vs;

template< class T1, class T2 >
int upmin( T1 &x, T2 v ){
  if( x > v ){
    x = v;
    return 1;
  }
  return 0;
}

template< class T1, class T2 >
int upmax( T1 &x, T2 v ){
  if( x < v ){
    x = v;
    return 1;
  }
  return 0;
}

const int INF = 0x3f3f3f3f;

int A, B, C, D;

void init(){
  cin >> A >> B >> C >> D;
}

void preprocess(){
  cout << -1 << endl, exit( 0 );
  int cnt = A + B - C - 2;
  if( cnt < 0 )
    cout << -1 << endl, exit( 0 );
  int a = A - C - 1;
  int b = B - C - 1;
  if( A == B and B == C ){
    if( C - 2 < 0 )
      cout << -1 << endl, exit( 0 );
    cout << C << " " << C << endl;
    cout << 0 << " " << 1 << endl;
    cout << 1 << " " << 0 << endl;
    for( int i = 2; i < C; ++i )
      cout << i - 1 << " " << i << endl;
    exit( 0 );
  }
  if( A == C ){
    if( B - 1 > D )
      cout << -1 << endl, exit( 0 );
    cout << B << " " << B - 1 << endl;
    cout << 1 << " " << 0 << endl;
    for( int i = 2; i < C; ++i ){
      if( i == 2 )
        cout << 0 << " " << i << endl;
      else
        cout << i - 1 << " " << i << endl;
    }
    for( int i = C + 1; i < B; ++i ){
      if( i == C + 1 )
        cout << 1 << " " << i << endl;
      else
        cout << i - 1 << " " << i << endl;
    }
    exit( 0 );
  }
  if( B == C ){
    if( A - 1 > D )
      cout << -1 << endl, exit( 0 );
    cout << A << " " << A - 1 << endl;
    cout << 0 << " " << 1 << endl;
    for( int i = 2; i <= C; ++i )
      cout << i - 1 << " " << i << endl;
    for( int i = C + 1; i < A; ++i ){
      if( i == C + 1 )
        cout << 0 << " " << i << endl;
      else
        cout << i - 1 << " " << i << endl;
    }
    exit( 0 );
  }
  if( A + B - 2 > D )
    cout << -1 << endl, exit( 0 );
  cout << cnt + 2 << " " << a + b + C + ( C > 0 ) << endl;
  cnt = 2;
  if( C )
    cout << 0 << " " << cnt << endl,
    cout << 1 << " " << cnt++ << endl,
    --C;
  while( C )
    cout << cnt - 1 << " ",
    cout << cnt++ << endl,
    --C;
  if( a )
    cout << 0 << " ",
    cout << cnt++ << endl,
    --a;
  while( a )
    cout << cnt - 1,
    cout << " " << cnt++ << endl,
    --a;
  if( b )
    cout << 1 << " ",
    cout << cnt++ << endl,
    --b;
  while( b )
    cout << cnt - 1 << " ",
    cout << cnt++ << endl,
    --b;
}

void solve(){

}

signed main(){
  ios::sync_with_stdio( 0 );
  init();
  preprocess();
  solve();
  return 0;
}