#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int N;
long long W;
cin >> N >> W;
vector<int> S(N), Q(N);
for (int i = 0; i < N; i++) {
cin >> S[i] >> Q[i];
}
vector<pair<pair<int, int>, int>> C(N);
for (int i = 0; i < N; i++) {
C[i] = make_pair(make_pair(S[i], Q[i]), i + 1);
}
sort(C.begin(), C.end(), [] (pair<pair<int, int>, int> pa, pair<pair<int, int>, int> pb) {
pair<int, int> a = pa.first, b = pb.first;
if ((long long)a.first * b.second != (long long)a.second * b.first) {
return (long long)a.first * b.second > (long long)a.second * b.first;
} else {
return a.first < b.first;
}
});
int ans = 0, apos = -1;
double aw = -1;
for (int i = 0; i < N; i++) {
double w = 0;
int j = i;
while (j < N) {
w += (double)C[i].first.first / C[i].first.second * C[j].first.second;
if (w > W) {
w -= (double)C[i].first.first / C[i].first.second * C[j].first.second;
break;
}
j++;
}
if (j - i > ans || (j - i == ans && w < aw)) {
ans = j - i;
apos = i;
aw = w;
}
}
cout << ans << '\n';
for (int i = 0; i < ans; i++) {
cout << C[apos + i].second << '\n';
}
}
