#include<bits/stdc++.h>
using namespace std;
ifstream fin("energii.in");
ofstream fout("energii.out");



struct generator{
    double e,c,ef;
}v[1005];

bool comp(generator a,generator b)
{
    return ((a.ef>b.ef) || (a.ef==b.ef && a.c>b.c));
}
int n,w,smin;

int main()
{
    fin>>n>>w;
    for(int i=1;i<=n;i++)
    {
        fin>>v[i].e>>v[i].c;
        v[i].ef=v[i].e/v[i].c;
    }
    sort(v+1,v+n+1,comp);
    smin=w/v[1].e*v[1].c;
    fout<<smin;
    return 0;
}