A sky scraper with 1000 floors has been built in the city of N. It has modern superfast elevators to help to travel from one floor to another. Each elevator has two doors, the front one and the back one. If one goes in through the front door, he goes out through the back one and vice versa. The elevator has two rails numbered with numbers 1 and 2. Rail 1 is located to the left of the entrance to the front door (or correspondingly, to the right of the entrance to the back door). Rail 2 is located opposite it, to the right of the entrance to the front door and to the left of the entrance to the back door. We know that each person in the city of N holds at a rail with the strongest hand. 

One day a VIP person visited the city and of course, he took a look at the skyscraper and took a ride in the elevator. We know the door through which he entered and the rail he was holding at. Now we need to determine as soon as possible whether he is left-handed or right-handed.

Input

The first line indicates the door through which the very important person entered the elevator. It contains "front" if the person enters the elevator through the front door and "back" if he entered the elevator through the back door. The second line contains integer a (1 ≤ a ≤ 2) which denotes the number of the rail at which the person was holding.

Output

Print character "R" if the VIP is right-handed or "L" if he is left-handed.

Examples

Input

front
1


Output

L
import java.io.*;
import java.util.*;
import java.math.*;

import static java.lang.Math.*;

public class Main implements Runnable {

    StreamTokenizer in;
    BufferedReader reader;
    PrintWriter out;
    StringTokenizer tok;
    Scanner sc;
    boolean timus = true;//System.getProperty("ONLINE_JUDGE")!=null;
    boolean codeforces = false;
    final double eps = 1e-9;
    
    public static void main(String[] args) throws Exception {
        new Thread(new Main()).start();
    }
    
    @Override
    public void run() {
        try {
            if (codeforces) {
                sc = new Scanner(System.in);
                reader = new BufferedReader(new InputStreamReader(System.in));
                in = new StreamTokenizer(reader);
                out= new PrintWriter (new OutputStreamWriter(System.out));
                tok = new StringTokenizer("");
                solve();
                out.flush();
            } else
                if (timus) {
                    sc = new Scanner("input.txt");
                    reader = new BufferedReader(new FileReader("input.txt"));
                    in = new StreamTokenizer(reader);
                    out= new PrintWriter (new FileWriter("output.txt"));
                    tok = new StringTokenizer("");
                    solve();
                    out.flush();
                    out.close();
                } else
                    if (!timus) {
                long begMem = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
                long t1 = System.currentTimeMillis();
                reader = new BufferedReader(new InputStreamReader(System.in));
                in = new StreamTokenizer(reader);
                sc = new Scanner(System.in);
                out= new PrintWriter (new OutputStreamWriter(System.out));
                tok = new StringTokenizer("");
                solve();
                long endMem = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
                out.flush();
                long t2 = System.currentTimeMillis();
                System.out.println("Time:"+(t2-t1));
                System.out.println("Memory:"+(endMem-begMem));
                System.out.println("Total memory: " + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()));
            }
        }
        catch (Exception ex) {
            System.out.println("fail");
            System.exit(1);
        }
    }
    
    public class Chess {
        String coord;
        
        public Chess(String s){
            this.coord=s;
        }
        
        public int toInteger(char s) {
            if (s=='a'||s=='A') return 1;
            else if (s=='b'||s=='B') return 2;
            else if (s=='c'||s=='C') return 3;
            else if (s=='d'||s=='D') return 4;
            else if (s=='e'||s=='E') return 5;
            else if (s=='f'||s=='F') return 6;
            else if (s=='g'||s=='G') return 7;
            else if (s=='h'||s=='H') return 8;
            else return -1;
        }
        
        public String toString(int s) {
            if (s==1) return "a";
            else if (s==2) return "b";
            else if (s==3) return "c";
            else if (s==4) return "d";
            else if (s==5) return "e";
            else if (s==6) return "f";
            else if (s==7) return "g";
            else if (s==8) return "h";
            else return "0";
        }
        
        public pair getPair() {
            String j="";
            j+=coord.charAt(1);
            pair p = new pair(toInteger(coord.charAt(0)),Integer.parseInt(j));
            if (p.x!=-1)
            return p; else
                return new pair(0,0);
        }
        
        public String returnPair(pair p) {
            return toString(p.x)+p.y;
        }
    }
    
    public int nextInt() throws Exception {
        in.nextToken();
        return (int) in.nval;
    }
    
    public String next() throws Exception {
        in.nextToken();
        return in.sval;
    }
    
    public String nextLine() throws Exception {
        return reader.readLine();
    }
    
    public String nextString() throws Exception {
        while (!tok.hasMoreTokens())
            tok = new StringTokenizer(reader.readLine());
        return tok.nextToken();
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(nextString());
    }
    
    public double nextDouble() throws Exception {
        in.nextToken();
        return in.nval;
    }
    
    public class pair {
        int x;
        int y;
        
        public pair(int x, int y) {
            this.x=x;
            this.y=y;
        }
    }
    
    public int gcd(int a, int b) {
        if (a== 0||b==0) return 1;
        if (a<b) {
                int c=b;
                b=a;
                a=c;
        }
        while (a%b!=0) {
                a =a%b;
                if (a<b) {
                        int c=b;
                        b=a;
                        a=c;
                }
        }
        return b;
    }
    
     public int pow(int a, int n) {
         if (n==0) return 1;
         int k=n, b=1, c=a;
         while (k!=0) {
                 if (k%2==0) {
                         k/=2;
                         c*=c;
                 } else {
                         k--;
                         b*=c;
                 }
         }
         return b;
     }
    
    public int lcm(int a, int b) {
        return a*b/gcd(a,b);
    }
    
    public class pairs implements Comparable<pairs> {
        int x;
        int y;
        
        public pairs(int x, int y) {
            this.x=x;
            this.y=y;
        }

        @Override
        public int compareTo(pairs obj) {
            if (this.x<((pairs)obj).x) return 1;
            else if (this.x==(obj).x&&this.y<(obj).y) return 1;
            else if (this.x==(obj).x&&this.y==(obj).y)return 0; else
                return -1;
        }   
    }
    
    public class Graf {
        
        int [][] a;
        int [] colors;
        ArrayList <String> points = new ArrayList<String>();
        LinkedList <Integer> queue = new LinkedList <Integer>();
        boolean [] used;
        boolean cycle;
        int numberOfCycle;
        
        public Graf(int [][]a,String s[]) {
            this.a=new int [s.length][s.length];
            this.a=a;
            this.colors=new int [s.length];
            this.used=new boolean[s.length];
            for (int i=0; i<s.length;i++) {
                this.colors[i]=0;
                this.points.add(s[i]);
            }
            Arrays.fill(this.used, false);
        }
        
        public void bfs(int i) {
            this.queue.add(i);
            while (!this.queue.isEmpty())
            {
                i = this.queue.pop();
                out.print(points.get(i)+" ");
                this.used[i]=true;
                for (int j=0; j<this.points.size();j++) {
                    if (this.a[i][j]==1&&!this.queue.contains(j)&&!this.used[j]) {
                        this.a[i][j]=0;
                        this.a[j][i]=0;
                        this.queue.addLast(j);
                    }
                }
            }
        }
        
        public void dfs(int i) {
            this.colors[i]=1;
            out.print(points.get(i)+" ");
            for (int j=0; j<this.colors.length;j++) {
                if (this.a[i][j]==1&&this.colors[j]==0) {
                    this.colors[j]=1;
                    this.a[i][j]=0;
                    this.a[j][i]=0;
                    dfs(j);
                } else if (this.a[i][j]==1&&this.colors[j]==1) {
                    this.cycle=true;
                    this.numberOfCycle++;
                }
            }
            this.colors[i]=2;
        }   
    }
    
    public class Time {
        
        int h;
        int min;
        int sec;
        
        public Time(String s) {
            String [] st = s.split(":");
            this.h =Integer.parseInt(st[0]);
            this.min =Integer.parseInt(st[1]);
            this.sec =(st[2]!=null)? Integer.parseInt(st[2]):0;
        }
        
        public String toString(int a) {
            String h = Integer.toString(this.h);
            String min = Integer.toString(this.min);
            String sec = Integer.toString(this.sec);
            if (h.length()==1) {
                h='0'+h;
            }
            if (min.length()==1) {
                min='0'+min;
            }
            if (sec.length()==1) {
                sec='0'+sec;
            }
            if (a==5) {
                return h+":"+min;
            } else {
                return h+":"+min+":"+sec;
            }
        }
        
        public void to12HoursFormat () {
            h%=12;
        }
        
        public void add (int  h,int min,int s) {
            this.sec+=s;
            if (this.sec>=60) {
                this.min++;
                this.sec%=60;
            }
            this.min+=min;
            if (this.min>=60) {
                this.h++;
                this.min%=60;
            }
            this.h+=h;
            if (this.h>=24) {
                this.h%=24;
            }
        }
    }
    
    public int[] findPrimes(int x) {
        boolean[] erat = new boolean[x-1];
        List<Integer> t = new ArrayList<Integer>();
        int l=0, j=0;
        for (int i=2;i<x; i++) {
                if (erat[i-2]) continue;
                t.add(i);
                l++;
                j=i*2;
                while (j<x) {
                        erat[j-2]=true;
                        j+=i;
                }
        }
        int[] primes = new int[l];
        Iterator<Integer> iterator = t.iterator();
        for (int i = 0; iterator.hasNext(); i++) {
                primes[i]=iterator.next().intValue();
        }
        return primes;
    }
    
    public double dist(pair a,pair b) {
        return sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y));
    }
    
    int max_val=Integer.MIN_VALUE;
    
    public void dfs (int current, int prev, int max,int a[][]) {
        int n = a[0].length;
        for (int i=0; i<n;i++) {
            if (a[current][i]==1&&prev!=i) {
                dfs(i,current,max+1,a);
            }
        }
        max_val = max(max_val,max);
    }
    
    public void solve() throws Exception {
        String s = nextLine();
        int a = Integer.parseInt(nextLine());
        if (s.equals("front")){
            if (a==1) {
                out.println("L");
            } else out.println("R");
        } else {
            if (a==1) {
                out.println("R");
            } else out.println("L");
        }
    }
}
