using System;
using System.Collections.Generic;

class P
{
    static void Main()
    {
        new P().Sol();
    }
    private int A,B;
    private Random R=new Random();
    
    private string Rand()
    {
        int l=50;
        var res=new char[l];
        for(int i=0;i<l;i++)
        {
            res[i]=(char)R.Next('a','z'+1);
        }
        
        return new string(res);
    }
    
    private long GetHash(string s)
    {
        var res=0L;
        foreach(var c in s)
        {
            res=(res*A+c)%B;
        }
        return res;
    }
    
    public void Sol()
    {
        var l=Console.ReadLine().Split(' ');
        A=int.Parse(l[0]);
        B=int.Parse(l[1]);
        var d=new Dictionary<long,string>();
        while(true)
        {
            var s=Rand();
            var lo=GetHash(s);
            string o;
            if(d.TryGetValue(lo,out o))
            {
                Console.WriteLine($"{o}\n{d[lo]}");
            }
            else
            {
                d[lo]=s;
            }
        }
    }
}