#include <bits/stdc++.h>

using ll = long long;
using namespace std;

int h, t;
ll cnt[1001][26];

void solve() {
    int k; cin >> k;
    string ans;
    while (k >= 1) {
        for (int i = 0; i < 26; i++) {
            if (!ans.empty() && abs(i-(ans.back()-'a')) != 1) continue;
            if (cnt[h-ans.size()][i] >= k) {
                ans += char('a'+i);
                k--;
                break;
            } else {
                k -= cnt[h-ans.size()][i];
            }
        }
    }
    cout << ans << "\n";
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> h >> t;
    for (int i = 1; i <= h; i++) {
        for (int j = 0; j < 26; j++) {
            cnt[i][j] = 1;
            if (j != 0) cnt[i][j] += cnt[i-1][j-1];
            if (j != 25) cnt[i][j] += cnt[i-1][j+1];
        }
    }
    while (t--) {
        solve();
    }
    return 0;
}