import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.Queue;
//UL, UR, R, LR, LL, L
class codesprint1 {
    static boolean b[][];
    static int rowNum[] = {-2, -2, 0, 2, 2, 0}, colNum[] = {-1, 1, 2, 1, -1, -2},n;
    static String str[] = {"UL ", "UR ", "R ", "LR ", "LL ", "L "};
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        n = Integer.parseInt(in.readLine());
        String s[] = in.readLine().split(" ");
        int i_start = Integer.parseInt(s[0]);
        int j_start = Integer.parseInt(s[1]);
        int i_end = Integer.parseInt(s[2]);
        int j_end = Integer.parseInt(s[3]);
        b = new boolean[n][n];
        BFS(new Point(i_start,j_start),new Point(i_end,j_end));
        in.close();
    }

    public static void BFS(Point src, Point dest) {
        
        boolean visited[][] = new boolean[n][n];
        visited[src.x][src.y] = true;
        Queue<Nodex> q = new LinkedList<>();
        Nodex s = new Nodex(0, "", src);
        q.add(s);
        while (!q.isEmpty()) {
            Nodex curr = q.poll();
            Point pt = curr.z;
            if (pt.x == dest.x && pt.y == dest.y) {
                System.out.println(curr.x + "\n" + curr.y);
                return;
            }
            for (int i = 0; i < 6; i++) {
                int row = pt.x + rowNum[i];
                int col = pt.y + colNum[i];
                if (isValid(row, col) &&
                        !visited[row][col]) {
                    visited[row][col] = true;
                    Nodex Adjcell = new Nodex(curr.x + 1, curr.y + str[i], new Point(row, col));
                    q.add(Adjcell);
                }
            }
        }
        System.out.println("Impossible");
    }

    private static boolean isValid(int row, int col) {
        // return true if row number and column number
        // is in range
        return (row >= 0) && (row < n) &&
                (col >= 0) && (col < n);
    }
}

class Nodex
{
    int x;String y;Point z;
    Nodex(int x,String y,Point z){
        this.x=x;
        this.y=y;
        this.z=z;
    }
}
class Point
{
    int x,y;
    Point(int x,int y)
    {
        this.x=x;
        this.y=y;
    }
}