royalNonStop 60

import java.math.BigDecimal;
import java.util.Scanner;

public class RoyalNonStop {

    public static void main(String[] args) {

        try (Scanner scanner = new Scanner(System.in);) {
            int row = scanner.nextInt();
            int col = scanner.nextInt();
            scanner.nextLine();

            double lukankaPrice = scanner.nextDouble();
            double rakijaPrice = scanner.nextDouble();
            scanner.nextLine();

            int custumerCounter = 0;
            BigDecimal moneyEarned = BigDecimal.ZERO;
            String custumer = scanner.nextLine();

            while (true) {
                if (custumer.equals("Royal Close")) {
                    break;
                }
                double custumerRow = Double.parseDouble(custumer.split(" ")[0])+ 1d;
                double custumerCol = Double.parseDouble(custumer.split(" ")[1])+ 1d;

                double currentArticle;
                if (custumerRow >= custumerCol) {
                    if (custumerRow % 2 == 0) {
                        currentArticle = new Double(rakijaPrice);
                    } else {
                        currentArticle = new Double(lukankaPrice);
                    }
                    for (double i = custumerCol; i > 1; i--) {

                        BigDecimal rowAmount = BigDecimal.valueOf(custumerRow)
                                .multiply(BigDecimal.valueOf(i));
                        moneyEarned = moneyEarned.add(rowAmount
                                .multiply(BigDecimal.valueOf(currentArticle)));
                    }
                    for (double i = custumerRow; i > 1; i--) {
                        if (i % 2 == 0) {
                            currentArticle = new Double(rakijaPrice);
                        } else {
                            currentArticle = new Double(lukankaPrice);
                        }
                        BigDecimal rowAmount = BigDecimal.valueOf(i).multiply(
                                BigDecimal.valueOf(1d));
                        moneyEarned = moneyEarned.add(rowAmount
                                .multiply(BigDecimal.valueOf(currentArticle)));

                    }

                }else{
                    for (double i = custumerRow; i > 1; i--) {
                        if (i % 2 == 0) {
                            currentArticle = new Double(rakijaPrice);
                        } else {
                            currentArticle = new Double(lukankaPrice);
                        }
                        BigDecimal rowAmount = BigDecimal.valueOf(i).multiply(
                                BigDecimal.valueOf(custumerCol));
                        moneyEarned = moneyEarned.add(rowAmount
                                .multiply(BigDecimal.valueOf(currentArticle)));

                    }
                    for (double i = custumerCol; i > 1; i--) {

                        BigDecimal rowAmount = BigDecimal.valueOf(1d)
                                .multiply(BigDecimal.valueOf(i));
                        moneyEarned = moneyEarned.add(rowAmount
                                .multiply(BigDecimal.valueOf(lukankaPrice)));
                    }
                }
                custumerCounter++;
                custumer = scanner.nextLine();

            }
            System.out.println(moneyEarned.setScale(6, BigDecimal.ROUND_HALF_UP));
            System.out.println(custumerCounter);
        } catch (Exception e) {
            System.out.println(e.toString());
        }
    }
}