水题。

。。

import java.util.Scanner;

public class Main {
	static int m1, m2;
	static int r1, r2, r3;

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		while (sc.hasNext()) {
			m1 = m2 = r1 = r2 = r3 = 0;
			m1 = sc.nextInt();
			m2 = sc.nextInt();
			String order = sc.next();
			for (int i = 0; i < order.length(); i++) {
				calculate(order.charAt(i));
			}
			System.out.println(m1 + "," + m2);
		}
	}

	public static void calculate(char ch) {
		switch (ch) {
		case ‘A‘:
			r1 = m1;
			break;
		case ‘B‘:
			r2 = m2;
			break;
		case ‘C‘:
			m1 = r3;
			break;
		case ‘D‘:
			m2 = r3;
			break;
		case ‘E‘:
			r3 = r1 + r2;
			break;
		case ‘F‘:
			r3 = r1 - r2;
			break;
		default:
			break;
		}
	}
}

最简单的计算机

100 288
ABECED
876356 321456
ABECAEDBECAF

388,388
2717080,1519268