#include <iostream>
#include <fstream>
#define L_MAX 100000
using namespace std;
ifstream f("rucsac.in");
ofstream g("rucsac.out");
int gr[L_MAX], val[L_MAX];
double v[L_MAX];
int main()
{
    int n, m, i, y, x, j, s=0, z;
    f>>n>>m;
    for(i=1; i<=n; i++)
    {
        f>>gr[i]>>val[i];
        v[i]=(double)val[i]/gr[i];
    }
    for(i=2; i<=n; i++)
    {
        x=v[i];
        y=gr[i];
        z=val[i];
        j=i-1;
        while(j>=1 && v[j]<x)
        {
            v[j+1]=v[j]; val[j+1]=val[j]; gr[j+1]=gr[j];
            j--;
        }
        val[j+1]=z;
        gr[j+1]=y;
        v[j+1]=x;
    }
    for(i=1; i<=n; i++)
        g<<gr[i]<<" "<<val[i]<<" "<<v[i]<<endl;
    for(i=n; i>=1; i--)
        if(gr[i]<m && m>=0)
        {
            s=s+val[i];
            m=m-gr[i];
        }
    g<<s;
    return 0;
}