#include<bits/stdc++.h>
using namespace std;
const int MAXN = 5e5 + 10;
const int MAXQ = 2e4 + 10;
int n;
double w;
double s[MAXN], q[MAXN];
vector<int> ord;
double seg[4 * MAXQ];
int cnt[4 * MAXQ];
void update(int pos, int ini, int fim, double id);
void query(int pos, int ini, int fim, int p, int q);
int bb(int pos, int ini, int fim, double val);
bool cmp(int a, int b){
return s[a] * q[b] < s[b] * q[a];
}
int main(){
scanf("%d %lf", &n, &w);
for(int i = 1; i <= n; i++){
scanf("%lf %lf", &s[i], &q[i]);
ord.push_back(i);
}
sort(ord.begin(), ord.end(), cmp);
int ans = 0, id = 0;
double qnt = 0;
for(int i = 0; i < ord.size(); i++){
int cur = ord[i];
update(1, 1, MAXQ, q[cur]);
int k = bb(1, 1, MAXQ, w * q[cur] / s[cur]);
query(1, 1, MAXQ, 1, k - 1);
int valC = cnt[0];
int valW = seg[0] * s[cur] / q[cur];
if(valC < ans) continue;
if(valC > ans) ans = valC, qnt = valW, id = i;
if(qnt > valW) ans = valC, qnt = valW, id = i;
}
printf("%d\n", ans);
set<pair<double, int> > aux;
for(int i = 0; i <= id; i++)
aux.insert(make_pair(q[ord[i]], ord[i]));
while(ans--){
printf("%d\n", aux.begin()->second);
aux.erase(aux.begin());
}
}
void update(int pos, int ini, int fim, double id){
if(ini > id || fim < id) return;
if(ini == fim){
seg[pos] += id;
cnt[pos]++;
return;
}
int mid = (ini + fim) >> 1, e = pos << 1, d = e | 1;
update(e, ini, mid, id);
update(d, mid + 1, fim, id);
seg[pos] = seg[e] + seg[d];
cnt[pos] = cnt[e] + cnt[d];
}
int bb(int pos, int ini, int fim, double val){
pair<int, double> ret = make_pair(0, 0);
if(ini == fim) return ini;
int mid = (ini + fim) >> 1, e = pos << 1, d = e | 1;
if(seg[e] > val)
return bb(e, ini, mid, val);
return bb(d, mid + 1, fim, val - seg[e]);
}
void query(int pos, int ini, int fim, int p, int q){
cnt[0] = 0;
seg[0] = 0;
if(ini > q || fim < p) return;
if(ini >= p && fim <= q){
seg[0] = seg[pos];
cnt[0] = cnt[pos];
return;
}
int mid = (ini + fim) >> 1, e = pos << 1, d = e | 1;
query(e, ini, mid, p, q);
int auxC = cnt[0];
double auxS = seg[0];
query(d, mid + 1, fim, p, q);
cnt[0] += auxC;
seg[0] += auxS;
}
