#include <bits/stdc++.h>

using namespace std;

typedef pair <int, int> pii;

#define pb push_back
#define mp make_pair

int main(){

    int n, i, j;
    vector <pii> v;
    cin >> n;
    vector <int> x(n), y(n);
    for(i = 0; i < n; i++){
        cin >> x[i];
    }
    for(i = 0; i < n; i++){
        cin >> y[i];
    }
    for(i = 0; i < n; i++){
        int l = 999999, r = -1;
        for(j = 0; j < 60; j++){
            if((j+x[i])/60 == y[i]){
                l = min(j, l);
                r = j;
            }
        }
        if(r == -1){
            cout << "-1 -1";
            return 0;
        }
        v.pb(mp(l, r));
    }
    int l = v[0].first, r = v[0].second;
    for(i = 1; i < n; i++){
        int tl = v[i].first, tr = v[i].second;
        if(tr < l || tl > r || r < tl || l > tr){
            cout << "-1 -1";
            return 0;
        }
        l = max(l, tl);
        r = min(r, tr);
    }
    cout << l << ' ' << r;

    return 0;
}