Gadnite kvadrati :D

import java.util.*;

public class Main {
    static final String RECTANGLE_TYPE = "%dx%d: %d%n";
    static final String RECTANGLE_INFO = "%dx%d (%d:%d - %d:%d)";

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());

        int[] firstCell = Arrays.stream(scanner.nextLine().split("\\s+")).mapToInt(Integer::parseInt).toArray();
        int[] secondCell = Arrays.stream(scanner.nextLine().split("\\s+")).mapToInt(Integer::parseInt).toArray();


        Set<String> set = new LinkedHashSet<>();

        int counter = 0;
        int total = 0;
        for (int i = n; i >= 1; i--) {
            for (int j = i; j >= 1; j--) {
                System.out.print("");

                //  vertical counting and storing
                for (int k = 0; k < n; k++) {
                    for (int l = 0; l < n; l++) {
                        System.out.print("");
                        if (k + i <= n && l + j <= n) {
                            if (!isRectangle(i, j, k, l, k + i, l + j, firstCell[0], firstCell[1], secondCell[0], secondCell[1])) {
                                continue;
                            }
                            if (set.add(String.format(RECTANGLE_INFO, i, j, k, l, k + i, l + j))) {
                                counter++;
                            }
                        }
                    }
                }

                //  horizontal counting and storing
                for (int k = 0; k < n; k++) {
                    for (int l = 0; l < n; l++) {
                        if (k + j <= n && l + i <= n) {
                            if (!isRectangle(i, j, k, l, k + j, l + i, firstCell[0], firstCell[1], secondCell[0], secondCell[1])) {
                                continue;
                            }
                            if (set.add(String.format(RECTANGLE_INFO, i, j, k, l, k + j, l + i))) {
                                counter++;
                            }
                        }
                    }
                }

                System.out.printf(RECTANGLE_TYPE, i, j, counter);
                total += counter;
                counter = 0;
            }
        }
        System.out.println(total);

    }

    private static boolean isRectangle(int length, int width, int fromRow, int fromCol, int toRow, int toCol, int lineFromRow, int lineFromCol, int lineToRow, int lineToCol) {

        // filler strings just to keep track of the lines
        String topSide = String.format("%d:%d - %d:%d", fromRow, fromCol, toRow - length, toCol);
        String bottomSide = String.format("%d:%d - %d:%d", fromRow + length, fromCol, toRow, toCol);
        String leftSide = String.format("%d:%d - %d:%d", fromRow, fromCol, toRow, toCol - width);
        String rightSide = String.format("%d:%d - %d:%d", fromRow, fromCol + width, toRow, toCol);

        String line = String.format("%d:%d - %d:%d", lineFromRow, lineFromCol, lineToRow, lineToCol);

        if (lineFromRow == lineToRow) { //  line is horizontal
            if (lineFromRow == fromRow || lineFromRow == toRow) { //    top
                return !isSegment(fromCol, toCol, lineFromCol, lineToCol);
            }
        } else if (lineFromCol == lineToCol) { //   line is vertical
            if (lineFromCol == fromCol || lineFromCol == toCol) {
                return !isSegment(fromRow, toRow, lineFromRow, lineToRow);
            }
        }

        return true;
    }

    private static boolean isSegment(int from, int to, int lineFrom, int lineTo) {
        return from <= lineFrom && lineTo <= to;
    }
}