#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <cmath>
#include <algorithm>
#include <utility>
#include <stack>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <map>

using namespace std;

int main(void){
    int d,m;
    while (cin >> d >> m) {
        vector<long int> nums(d);
	long int profit = 0;
	for (int i=0; i<d; i++) {
	    cin >> nums[i];
	}
	long int maxPrice = 0;
	for (int i=d-1; i>=0; i--) {
	    maxPrice = max(maxPrice, nums[i]);
	    //cout << maxPrice - nums[i] << "  *  " << 
	    profit = max(profit, (maxPrice - nums[i])*(m/nums[i]));
	    //cout << i << " " << profit << endl;
	}
	//cout << "wheee" << endl;
	cout << profit << endl;
    }
    cout << endl;
  
    return 0;
}