ABC_208_A.cpp

//AT-COder BEginner Contest 
#include <bits/stdc++.h>
#define int long long
#define mod 1000000007
#define rep(i,n,s) for(int i=0;i<n;i+=s)
#define mxsize 100000
using namespace std;
void solve()
{
	int a, b;
	cin >> a >> b;
	if (((a * 6) >= b ) && (b >= a))cout << "Yes" << endl;
	else cout << "No" << endl;
 
}
 
int32_t main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
 
	solve();
	// solve2();
 
}