#include <bits/stdc++.h>
using namespace std;
long long readint() {
  long long x = 0, f = 1;
  char ch = getchar();
  while (ch < '0' || ch > '9') {
    if (ch == '-') f = -1;
    ch = getchar();
  }
  while (ch >= '0' && ch <= '9') {
    x = x * 10 + ch - '0';
    ch = getchar();
  }
  return x * f;
}
long long n, k;
int main() {
  n = readint();
  k = readint();
  cout << (k - 1ll) / n + 1 << endl;
  return 0;
}
