#include <bits/stdc++.h>
using namespace std;

#include <atcoder/all>
using namespace atcoder;

using ll = long long;
using mint = modint998244353;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int N, K;
    cin >> N >> K;

    int cnt = 0;
    string ans = "";
    auto dfs = [&](auto dfs, int p = 0, int prv = 0, bool f = false) -> bool {
        // cout << p << " " << prv << f << " " << endl;
        if(prv == 6) f = true;
        if(p == N) {
            cnt += f;
            return (cnt == K);
        }else {
            for(int c : {0, 1}) {
                if(dfs(dfs, p + 1, ((prv << 1) | c) & 7, f)) {
                    ans += "AM"[c];
                    return true;
                }
            }
            return false;
        }
    };
    dfs(dfs);
    reverse(ans.begin(), ans.end());
    cout << ans << endl;
}