#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using db = double;
using str = string;
using pi = pair<int, int>;
using pl = pair<ll, ll>;
using pd = pair<db, db>;
using vi = vector<int>;
using vb = vector<bool>;
using vl = vector<ll>;
using vd = vector<db>;
using vs = vector<str>;
using vpi = vector<pi>;
using vpl = vector<pl>;
using vpd = vector<pd>;
#define mp make_pair
#define f first
#define s second
#define sz(x) (int)(x).size()
#define bg(x) begin(x)
#define all(x) bg(x), end(x)
#define sor(x) sort(all(x))
#define rsz resize
#define ins insert
#define ft front()
#define bk back()
#define pb push_back
#define pf push_front
#define lb lower_bound
#define ub upper_bound
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define F0R(i, a) FOR(i, 0, a)
#define ROF(i, a, b) for (int i = (b) - 1; i >= (a); i--)
#define R0F(i, a) ROF(i, 0, a)
#define EACH(a, x) for (auto& a : x)
ll cdiv(ll a, ll b) { return a / b + ((a ^ b) > 0 && a % b); }
ll fdiv(ll a, ll b) { return a / b - ((a ^ b) < 0 && a % b); }
template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
template<class T> void remDup(vector<T>& v) { sor(v); v.erase(unique(all(v)), v.end()); }
const int MOD = 1e9 + 7;
const int MX = 5e5 + 10;
const ll INF = 1e18;
int N; ll W; int S[MX], Q[MX]; vi A; priority_queue<pi> PQ; ll tot = 0;
int maxSize = 0; ll NUM = 1, DEM = 1; int indMax = 0;
int main() {
ios_base::sync_with_stdio(false); cin.tie(0);
cin >> N >> W; FOR(i, 1, N + 1) cin >> S[i] >> Q[i];
A.rsz(N); iota(all(A), 1); sort(all(A), [&](int a, int b) { return S[a] * Q[b] < S[b] * Q[a]; });
EACH(C, A) {
PQ.push({Q[C], C}); tot += Q[C];
while (tot * S[C] > W * Q[C]) {
tot -= PQ.top().f; PQ.pop();
}
if (sz(PQ) > maxSize || (sz(PQ) == maxSize && NUM * Q[C] > tot * S[C] * DEM)) {
maxSize = sz(PQ); NUM = tot * S[C]; DEM = Q[C]; indMax = C;
}
}
while (!PQ.empty()) PQ.pop(); tot = 0;
if (maxSize == 0) { cout << "0" << "\n"; return 0; }
EACH(C, A) {
PQ.push({Q[C], C}); tot += Q[C];
while (tot * S[C] > W * Q[C]) {
tot -= PQ.top().f; PQ.pop();
}
if (C == indMax) {
cout << sz(PQ) << "\n";
while (!PQ.empty()) {
cout << PQ.top().s << "\n";
PQ.pop();
}
break;
}
}
}
