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

#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define ALL(v) (v).begin(), (v).end()
#define p(s) cout<<(s)<<endl
#define p2(s, t) cout << (s) << " " << (t) << endl
#define br() p("")
#define pn(s) cout << (#s) << " " << (s) << endl
#define p_yes() p("Yes")
#define p_no() p("No")

const ll mod = 1e9 + 7;
const ll inf = 1e18;

unsigned long long get_hash(string s, unsigned long long a, unsigned long long b){
	unsigned long long hash = 0;
	for(int i = 0; i < s.size(); i++){
		hash = (hash * a + s[i]) % b;
	}
	return hash;
}

string generate_random_string(){
    stringstream ss;
    // ll len = rand() % 50 + 50;
    ll len = 100; // 長さは今回の設定では同じである必要がある
    FOR(i, 0, len){
        char c = 'a' + rand() % 26;
        ss << c;
    }
    return ss.str();
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    // input
    ll a, b;
    cin >> a >> b;

    map<ll, string> memo;

    while(true){
        string s = generate_random_string();
        
        ll hash = get_hash(s, a, b);

        // そのハッシュ知ってる
        if(memo.count(hash)>0){
            p(memo[hash]);
            p(s);
            return 0;
        }else{
            memo[hash] = s;
        }
    }
    
    return 0;
}