#include <iostream>
using std::cerr, std::cin, std::cout, std::endl, std::fixed, std::flush;
static_assert(sizeof(long) == 8);
int main()
{
  int L, R;
  cin >> L >> R;
  cout << (L <= 295 && 296 <= R) + (L <= 416 && 417 <= R) << '\n';
  return 0;
}
/*
  File : ~/kyopro/yukicoder/iwai2/A.cpp
  Date : 2025/08/09
  Time : 13:39:15
*/