#include <bits/stdc++.h>

int main() {
  double ans = 0;

  int a[6] = { 2, 3, 5, 7, 11, 13 };
  int b[6] = { 4, 6, 8, 9, 10, 12 };
  int P, C;

  double ea = 0;
  double eb = 0;
  
  std::cin >> P >> C;
  
  for(int i = 0; i < 6; ++i) {
    ea += a[i];
    eb += b[i];
  }
  ea /= 6;
  eb /= 6;
  
  ans = pow(ea, P) * pow(eb, C);
  
  printf("%.12lf\n", ans);

  return 0;
}