import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.awt.Point;

/**
 * Created by tim on 12/2/2015.
 */
public class Advent3 {

    static enum Direction {
        North(-1,0), South(1,0), East(0,1), West(0,-1);
        private final int dx;
        private final int dy;

        private Direction(int dx, int dy) {
            this.dx = dx;
            this.dy = dy;
        }
    }

    static Map<Character, Direction> map = new HashMap<>();

    static {
        map.put('^', Direction.North);
        map.put('>', Direction.East);
        map.put('<', Direction.West);
        map.put('v', Direction.South);
    }

    public static void main(String[] args) {
        String data = "^^<<v<<v><v^^<><> ...etc... >^>><<v>";

        //int[][] grid = new int[10000][10000];
        Set<Point> set = new HashSet<>();

        int[] x = new int[2];
        int[] y = new int[2];

        int turn = 1;
        set.add(new Point(x[0], y[0]));
        int sum = 1;

        Direction currentDir;

        for (char each : data.toCharArray()) {
            turn ^= 1;
            currentDir = map.get(each);
            x[turn] += currentDir.dx;
            y[turn] += currentDir.dy;
            set.add(new Point(x[turn],y[turn]));

        }
        System.out.println(set.size());
    }
}