#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int m, d;
  cin >> m >> d;
  if (m < 8 || (m == 8 && d < 22)) {
    cout << 23 << endl;
  }
  else {
    cout << 24 << endl;
  }
  return 0;
}