#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
using vll = vector<ll>;
const ll INF = LLONG_MAX / 4;
bool chmin(auto& a, const auto& b) { return a > b ? a = b, 1 : 0; }
bool chmax(auto& a, const auto& b) { return a < b ? a = b, 1 : 0; }
auto sz(const auto& a) { return ssize(a); }
#define OVERLOAD_REP(a, b, c, d, name, ...) name
#define rep(...) OVERLOAD_REP(__VA_ARGS__, REP3, REP2, REP1, REP0)(__VA_ARGS__)
#define REP0(x) for (ll _rep_counter = 0; _rep_counter < (x); ++_rep_counter)
#define REP1(i, x) for (ll i = 0; (i) < (x); ++(i))
#define REP2(i, l, r) for (ll i = (l); (i) < (r); ++(i))
#define REP3(i, l, r, c) for (ll i = (l); ((c) > 0 ? (i) < (r) : (i) > (r)); i += (c))
#define each(x,a) for (auto&& x : a)
#define MOD 998244353
#define ll0 ((ll)0)

void solve() {
    ll n; cin >> n;
    if(n <= 2) {
        cout << -1 << endl;
        return;
    }
    if(n == 3) {
        cout << "AAAAAA" << endl;
        cout << "ABBBBA" << endl;
        cout << "ABBBBA" << endl;
        cout << "ABBBBA" << endl;
        cout << "ABBBAA" << endl;
        cout << "ABBBAA" << endl;
        return;
    }
    vector v(2*n, vll(2*n, 0));
    ll a = 0; ll b = 0;
    rep(i, 2 * n) {
        rep(j, 2 * n) {
            if(i == 0 && j <= 1) {
                v[i][j] = 1;
                b++;
            }
            else if(i == 0) {
                // s += 'A';
                a++;
            }
            else if(j == 0 || j == 2*n-1) {
                // s += 'A';
                a++;
            }
            else if(i < 2*n-2) {
                v[i][j] = 1;
                b++;
            }
            else {
                // s += 'A';
                a++;
            }
        }
    }
    ll ss = (b-a)/2;
    rep(i, 2*n-3, 1, -1) rep(j, 2*n-2, 1, -1) {
        if(ss < 1) break;
        v[i][j] = 0;
        ss--;
    }
    rep(i, 2*n) {
        string s = "";
        rep(j, 2*n) {
            s += "AB"[v[i][j]];
        }
        cout << s << endl;
    }
}
int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    solve();
}