import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; import java.util.PriorityQueue; public class Main { InputStream is; int __t__ = 1; int __f__ = 0; int __STACKSIZE_CHANGE_FLAG__ = __f__; int __FILE_DEBUG_FLAG__ = __f__; String __DEBUG_FILE_NAME__ = "src/X1"; FastScanner in; PrintWriter out; public void solve() { int A = in.nextInt(), B = in.nextInt(), C = in.nextInt(), D = in.nextInt(); int a = 0, b = 1; if (A > B) { int tmp = A; A = B; B = tmp; a = 1; b = 0; } if (B == 1) { if (C == 0) { System.out.println("2 0"); } else { System.out.println("-1"); } return; } if (C == 0) { int N = A + B; int M = N - 2; if (M > D) { System.out.println(-1); return; } out.println(N + " " + M); int cur = 2; for (int i = 0; i < A - 1; i++) out.println(a + " " + cur++); for (int i = 0; i < B - 1; i++) out.println(b + " " + cur++); out.close(); } else if (A > C) { int N = A + B - C; int M = N - 1; if (M > D) { System.out.println(-1); return; } out.println(N + " " + M); int cur = 2; for (int i = 0; i < A - C; i++) out.println(a + " " + cur++); cur--; for (int i = 0; i < B - C; i++) out.println(b + " " + cur++); for (int i = 0, st = A - C + 1; i < C - 1; i++) out.println(st + " " + cur++); out.close(); } else if (A == C) { int N = B; int M = N - 1; if (M > D) { System.out.println(-1); return; } out.println(N + " " + M); for (int i = 0; i < A - 1; i++) out.println(a + " " + (i+2)); out.println(b + " " + a); for (int i = 0; i < B - A - 1; i++) out.println(b + " " + (i+1+A)); } else { throw new RuntimeException(); } out.close(); } public void run() { if (__FILE_DEBUG_FLAG__ == __t__) { try { is = new FileInputStream(__DEBUG_FILE_NAME__); } catch (FileNotFoundException e) { e.printStackTrace(); } System.out.println("FILE_INPUT!"); } else { is = System.in; } in = new FastScanner(is); out = new PrintWriter(System.out); if (__STACKSIZE_CHANGE_FLAG__ == __t__) new Thread(null, new Runnable() { @Override public void run() { solve(); } }, "main", 1 << 30).start(); else solve(); } public static void main(String[] args) { new Main().run(); } public void mapDebug(long[][] a) { System.out.println("--------map display---------"); for (int i = 0; i < a.length; i++) { for (int j = 0; j < a[i].length; j++) { System.out.printf("%3d ", a[i][j]); } System.out.println(); } System.out.println("----------------------------"); System.out.println(); } public void debug(Object... obj) { System.out.println(Arrays.deepToString(obj)); } class FastScanner { private InputStream stream; private byte[] buf = new byte[1024]; private int curChar; private int numChars; public FastScanner(InputStream stream) { this.stream = stream; // stream = new FileInputStream(new File("dec.in")); } int read() { if (numChars == -1) throw new InputMismatchException(); if (curChar >= numChars) { curChar = 0; try { numChars = stream.read(buf); } catch (IOException e) { throw new InputMismatchException(); } if (numChars <= 0) return -1; } return buf[curChar++]; } boolean isSpaceChar(int c) { return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1; } boolean isEndline(int c) { return c == '\n' || c == '\r' || c == -1; } int nextInt() { return Integer.parseInt(next()); } int[] nextIntArray(int n) { int[] array = new int[n]; for (int i = 0; i < n; i++) array[i] = nextInt(); return array; } int[][] nextIntMap(int n, int m) { int[][] map = new int[n][m]; for (int i = 0; i < n; i++) { map[i] = in.nextIntArray(m); } return map; } long nextLong() { return Long.parseLong(next()); } long[] nextLongArray(int n) { long[] array = new long[n]; for (int i = 0; i < n; i++) array[i] = nextLong(); return array; } long[][] nextLongMap(int n, int m) { long[][] map = new long[n][m]; for (int i = 0; i < n; i++) { map[i] = in.nextLongArray(m); } return map; } double nextDouble() { return Double.parseDouble(next()); } double[] nextDoubleArray(int n) { double[] array = new double[n]; for (int i = 0; i < n; i++) array[i] = nextDouble(); return array; } double[][] nextDoubleMap(int n, int m) { double[][] map = new double[n][m]; for (int i = 0; i < n; i++) { map[i] = in.nextDoubleArray(m); } return map; } String next() { int c = read(); while (isSpaceChar(c)) c = read(); StringBuilder res = new StringBuilder(); do { res.appendCodePoint(c); c = read(); } while (!isSpaceChar(c)); return res.toString(); } String[] nextStringArray(int n) { String[] array = new String[n]; for (int i = 0; i < n; i++) array[i] = next(); return array; } String nextLine() { int c = read(); while (isEndline(c)) c = read(); StringBuilder res = new StringBuilder(); do { res.appendCodePoint(c); c = read(); } while (!isEndline(c)); return res.toString(); } } }