import java.util.ArrayList;
import java.util.HashMap;

public class Lucka1 {

	public static void main(String[] args) {
		String input = "L5, R1, R4, L5, L4, R3, R1, L1, R4, R5, L1, L3, R4, L2, L4, R2, L4, L1, R3, R1, R1, L1, R1, L5, R5, R2, L5, R2, R1, L2, L4, L4, R191, R2, R5, R1, L1, L2, R5, L2, L3, R4, L1, L1, R1, R50, L1, R1, R76, R5, R4, R2, L5, L3, L5, R2, R1, L1, R2, L3, R4, R2, L1, L1, R4, L1, L1, R185, R1, L5, L4, L5, L3, R2, R3, R1, L5, R1, L3, L2, L2, R5, L1, L1, L3, R1, R4, L2, L1, L1, L3, L4, R5, L2, R3, R5, R1, L4, R5, L3, R3, R3, R1, R1, R5, R2, L2, R5, L5, L4, R4, R3, R5, R1, L3, R1, L2, L2, R3, R4, L1, R4, L1, R4, R3, L1, L4, L1, L5, L2, R2, L1, R1, L5, L3, R4, L1, R5, L5, L5, L1, L3, R1, R5, L2, L4, L5, L1, L1, L2, R5, R5, L4, R3, L2, L1, L3, L4, L5, L5, L2, R4, R3, L5, R4, R2, R1, L5";
		//String input = "R8, R4, R4, R8";
		String[] inputArray = input.split(", ");
		int direction = 90;
		int x = 0;
		int y = 0;
		HashMap<Integer, ArrayList<Integer>> hm = new HashMap<Integer, ArrayList<Integer>>();
		for (int i = 0; i < inputArray.length; i++) {
			if (inputArray[i].startsWith("L")) {
				direction += 90;
			} else {
				direction -= 90;
			}
			int steps = Integer.parseInt(inputArray[i].substring(1));
			for (int ii = 0; ii < steps; ii++) {
				x += (int) Math.cos(Math.toRadians(direction));
				y += (int) Math.sin(Math.toRadians(direction));
				if (hm.containsKey(x + y)) {
					ArrayList<Integer> al = hm.get(x + y);
					if (al.contains(x)) {
						System.out.println("Rätt: "
								+ (Math.abs(x) + Math.abs(y)));
					} else {
						al.add(x);
						hm.put(x + y, al);
					}
				} else {
					ArrayList<Integer> al = new ArrayList<Integer>();
					al.add(x);
					hm.put(x + y, al);
				}
			}

		}
		System.out.println((Math.abs(x) + Math.abs(y)));
	}
}