import java.util.*;

public class d {
    static int[] state, l, r, incoming;

    public static void main(String[] args) {
        //Read input
        Scanner scan = new Scanner(System.in);
        long n = scan.nextLong();
        int m = scan.nextInt();
        state = new int[m+1];
        l = new int[m+1];
        r = new int[m+1];
        incoming = new int[m+1];
        for (int i = 1; i <= m; i++) {
            char inState = scan.next().charAt(0);
            if (inState == 'L')
                state[i] = 0;
            else if (inState == 'R')
                state[i] = 1;
            else
                System.out.println("ERRRRORRROR");

            l[i] = scan.nextInt();
            r[i] = scan.nextInt();
            incoming[l[i]]++;
            incoming[r[i]]++;
        }

        //System.out.println(Arrays.toString(incoming));


        //Topological sort
        LinkedList<Integer> L = new LinkedList<Integer>();
        LinkedList<Integer> S = new LinkedList<Integer>();

        for (int i = 1; i <= m; i++)
            if (incoming[i] == 0)
                S.add(i);

        while (S.size() > 0) {
            int popped = S.pop();
            L.add(popped);

            incoming[l[popped]]--;
            if (incoming[l[popped]] == 0)
                S.add(l[popped]);

            incoming[r[popped]]--;
            if (incoming[r[popped]] == 0)
                S.add(r[popped]);
        }

        //System.out.println(Arrays.toString(L.toArray()));

        //Calculate counts
        long[] counts = new long[m+1];
        counts[1] = n;
        for (Integer i : L) {
            if (counts[i] % 2 == 0) {
                counts[l[i]] += counts[i] / 2;
                counts[r[i]] += counts[i] / 2;
            }
            else {
                if (state[i] == 0) {
                    counts[l[i]] += counts[i] / 2 + 1;
                    counts[r[i]] += counts[i] / 2;
                }
                else {
                    counts[l[i]] += counts[i] / 2;
                    counts[r[i]] += counts[i] / 2 + 1;
                }
            }
        }

        //Print answer
        StringBuilder answer = new StringBuilder();
        for (int i = 1; i <= m; i++) {
            if ((state[i] + counts[i]) % 2 == 0)
                answer.append("L");
            else
                answer.append("R");
        }
        System.out.println(answer);
    }
}