#include <bits/stdc++.h>
// meeeooowwwww mrrowwww :3
// go play vivid/stasis!! now!!!! https://vividstasis.gay
#define fo(i, a, b) for (auto i = (a); i < (b); i++)
#define of(i, a, b) for (auto i = (b); i-- > (a);)
#define f first
#define s second
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define be(a) a.begin(), a.end()
using namespace std;
int ____init = []{
ios::sync_with_stdio(false);
cin.tie(NULL), cout.tie(NULL);
return 0;
}();
pair<long long, pair<pair<int, int>, int>> a[500000];
int main() {
int n; long long w; cin >> n >> w;
fo(i, 0, n) cin >> a[i].s.f.f >> a[i].s.f.s, a[i].f = w * a[i].s.f.s / a[i].s.f.f, a[i].s.s = i;
sort(a, a + n);
long long mit = 2, mib = 1;
int l = 0, r = 0;
long long qsum = 0;
for (int i = 0, j = 0; i < n;) {
qsum += a[i].s.f.s;
while (qsum > a[j].f) qsum -= a[j++].s.f.s;
i++;
if (i - j > r - l || i - j == r - l && qsum * mib < mit * a[j].f) {
mit = qsum, mib = a[j].f;
l = j, r = i;
}
}
cout << r - l << endl;
fo(i, l, r) cout << a[i].s.s + 1 << endl;
}
