ABC325

#include <bits/stdc++.h>

using namespace std;

int main() {
    string s, t;
    cin >> s >> t;
    
    cout << s << ' ' << "san";
    
    return 0;

}

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)

using namespace std;

int main() {
    int n;
    cin >> n;
    
    vector<int> w(n), x(n);
    rep(i, n) cin >> w[i] >> x[i];
    
    int ans = 0;
    rep(t, 24) {
        int now = 0;
        rep(i, n) {
            int y = (x[i]+t)%24;
            if (9 <= y and y < 18) now += w[i];
        }
        ans = max(ans, now);
    }
    
    cout << ans << '\n';
    
    return 0;

}