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

#define MAXLEN 10
typedef unsigned long long ULL;
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;
}

int main(){
	string s(MAXLEN,'a');
	ULL a,b,hash;
	map<unsigned long long,string> m;
	map<unsigned long long,string>::iterator it;
	cin >> a >> b;
	while(1){
		for(int i=0;i<MAXLEN;i++){
			s[i]='a'+rand()%26;
		}
		hash=get_hash(s,a,b);
		it=m.find(hash);
		if(it!=m.end()){
			cout << m[hash] << endl;
			cout << s << endl;
			break;
		}else{
			m[hash]=s;
		}
	}
	return 0;
}