#include <bits/stdc++.h>

using namespace std;

const int N = 1010;

int n, m;
int w[N];  //占用的时间
int v[N];  //销售的价格
int f[N][N];//最优解
string s[N][N];//最优解对应的路径

int main() {
    //物品个数n
    cin >> n >> m;
    //读入重量和价值
    for (int i = 1; i <= n; i++) cin >> w[i] >> v[i];

    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++) {
            int x = f[i - 1][j - w[i]] + v[i];
            int y = f[i - 1][j];
            if (j >= w[i]) {
                if (x > y) {
                    f[i][j] = x;
                    s[i][j] = s[i - 1][j - w[i]] + " " + char(i + '0');
                } else {
                    f[i][j] = y;
                    s[i][j] = s[i - 1][j];
                }
            } else {
                f[i][j] = y;
                s[i][j] = s[i - 1][j];
            }
        }

    cout << f[n][m] << endl;
    cout << s[n][m] << endl;
    return 0;
}