#include <iostream>
//#include <string>
//#include <iomanip>
//#include <cstdlib>
#include <set>
//#include <cmath>
//#include <cstring>

using namespace std;

int main()
{
  int pole[70000+1];
  while(true)
  {
    int max_predaj = -1;
    int r = -1;
    int dni;
    cin >> dni;
    if(dni==0)
      break;
    int prachy;
    cin>>prachy;
    for(int i=0;i<dni;i++)
    {
      cin >> (pole[i]);
    }
    for(int i=dni-1;i>=0;i--)
    {
      if(max_predaj < pole[i])
	max_predaj=pole[i];
      int vydelek = (prachy / pole[i])*(max_predaj-pole[i]);
      if(r<vydelek)
	r = vydelek;
    }cout<<r<<endl;}
  return 0;
}