#include 
//#include 
#include 
using namespace std;

int rastojanie(int a, int b) {
    return abs(a-b);
}

string levo_ili_desno(pair platforma, pair otsecka) {

    if(otsecka.first otsecka, pair platforma) {
    
    if(otsecka.firstplatforma.second) {
        return false;
    }
    if(otsecka.first>=platforma.first and otsecka.second<=platforma.second) {
        return true;
    }
    
    if(levo_ili_desno(platforma,otsecka)=="levo") {
            if(rastojanie(platforma.first,otsecka.second)>=rastojanie(platforma.first,otsecka.first)) {
                return true;
                
            }
        }
        else {
            if(rastojanie(otsecka.first,platforma.second)>=rastojanie(otsecka.second,platforma.second)) {
                return true;
                
            }
        }
    return false;

}
int main(){
    int N,L;
    pair platforma;
    cin>>N>>L;
    vector> otsecka;
    platforma.first = 0;
    platforma.second = L;
   
    for(int i = 0; i>x>>y;
        otsecka.push_back(make_pair(x,y));
    }

    int brojac = 0;

    for(int i = 0; i -5000 and dali_moze(otsecka[j], platforma)) {
                brojac++;
                platforma.first = min(platforma.first, otsecka[j].first);
                platforma.second = max(platforma.second, otsecka[j].second);
                
                otsecka[j].first = -5000;
            }
        }
    }
    
    cout<