import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.Queue;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int h = Integer.parseInt(sa[0]);
		int w = Integer.parseInt(sa[1]);
//		int p = Integer.parseInt(sa[2]);

		int h1 = h - 1;
		int w1 = w - 1;
		int[] dx = {1, 0, -1, 0};
		int[] dy = {0, 1, 0, -1};
		int[][] tate = new int[h][w];
		int[][] yoko = new int[h][w];
		int border = 0;

		while (true) {
			// 探索
			int[][] d = new int[h][w];
			int[][] pre = new int[h][w];
			for (int i = 0; i < h; i++) {
				Arrays.fill(d[i], -1);
				Arrays.fill(pre[i], -1);
			}
			d[0][0] = 0;
			Queue<Integer> que = new ArrayDeque<>();
			que.add(0);
			while (!que.isEmpty()) {
				int cur = que.poll();
				int cx = cur / w;
				int cy = cur % w;
				for (int i = 0; i < 4; i++) {
					int nx = cx + dx[i];
					int ny = cy + dy[i];
					if (nx < 0 || h <= nx || ny < 0 || w <= ny ||
							i == 0 && yoko[cx][cy] > border ||
							i == 1 && tate[cx][cy] > border ||
							i == 2 && yoko[nx][ny] > border ||
							i == 3 && tate[nx][ny] > border) {
						continue;
					}
					if (d[nx][ny] == -1) {
						que.add(nx * w + ny);
						d[nx][ny] = d[cx][cy] + 1;
						pre[nx][ny] = cur;
					}
				}
			}

			if (pre[h1][w1] == -1) {
				border++;
				continue;
			}

			// 出力
			StringBuilder sb = new StringBuilder();
			int pos = h1 * w + w1;
			while (pos != 0) {
				int cx = pos / w;
				int cy = pos % w;
				int np = pre[cx][cy];
				int nx = np / w;
				int ny = np % w;
				if (nx < cx) sb.append('D');
				else if (ny < cy) sb.append('R');
				else if (nx > cx) sb.append('U');
				else if (ny > cy) sb.append('L');
				else throw new RuntimeException();
				pos = np;
			}
			sb.reverse();
			System.out.println(sb.toString());

			// 入力
			int a = Integer.parseInt(br.readLine());
			if (a == -1) {
				return;
			}

			// 壁更新
			int cx = 0;
			int cy = 0;
			for (int i = 0; i < a; i++) {
				char c = sb.charAt(i);
				if (c == 'D') cx++;
				else if (c == 'R') cy++;
				else if (c == 'U') cx--;
				else if (c == 'L') cy--;
			}
			char c = sb.charAt(a);
			if (c == 'D') yoko[cx][cy]++;
			else if (c == 'R') tate[cx][cy]++;
			else if (c == 'U') yoko[cx - 1][cy]++;
			else if (c == 'L') tate[cx][cy - 1]++;
		}
	}
}