#include <iostream>
#include <string>
#include <algorithm>
#include <utility>
#include <cmath>
#include <cstdlib>
#include <map>
#include <set>
#include <queue>
#include <vector>
#include "testlib.h"
using namespace std;
#define MOD 998244353

int main() {
    registerValidation();
    long long N = inf.readLong((long long)1, (long long)1000000000, "N");
    inf.readSpace();
    long long M = inf.readLong((long long)1, (long long)200000, "M");
    inf.readEoln();
    for (int i = 0; i < M; i++) {
        long long L = inf.readLong((long long)1, (long long)N, "L");
        inf.readSpace();
        long long R = inf.readLong((long long)L, (long long)N, "R");
        inf.readEoln();
    }
    inf.readEof();
}