#include <bits/stdc++.h>
using namespace std;
#define rep(i, s, n) for (int i = (s); i < (int)(n); i++)
#include <atcoder/all>
using namespace atcoder;
using mint1 = modint1000000007;
using mint2 = modint998244353;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
ld pi=3.141592653589793;
const int inf=2e9;
const ll linf=2e18;
const ld eps=1e-14;
#define Yes cout << "Yes" << endl
#define No cout << "No" << endl

int main() {
    ll m,d;
    cin >> m >> d;
    if(m<8) {
        cout << 23 << endl;
    }else {
        if(m>=9) {
            cout << 24 << endl;
        }else {
            if(d<=21) {
                cout << 23 << endl;
            }else {
                cout << 24 << endl;
            }
        }
    }
}