#include <iostream>
using namespace std;
const int Mx = 1e7 + 10;
const ll Mod = 1e9 + 7;
const int INF = -0x3f3f3f3f;
double x, s;
double a[Mx], sum[Mx];
int main()
{
  Buff;
  cin >> s >> x;
  if (s + x == 7)
  {
    cout << "y" << endl;
    return 0;
  }
  a[0] = 7;
  for (int i = 1; i <= 100; i++)
  {
    a[i] = a[i - 1] * 0.980000;//打表算出每一秒跑的距离
    sum[i] = sum[i - 1] + a[i];//前缀和
  }

  for (int i = 1; i <= 100; i++)
  {
    if (sum[i] >= s)//看下一秒能跑不能
    {
      if (x >= a[i+1])
        cout << "y" << endl;
      else
        cout << "n" << endl;
      break;
    }
  }
  return 0;
}