#include <iostream>
using namespace std;
void Q ( int val )
{
printf("%c", val + 'a' - 1);
}
int main ()
{
int Valve = 3;
for (int i = 0; i < 5991; i++ )
Valve++;
Q( Valve / 333 );
Valve += 12345;
Q( Valve % 18334 );
Valve /= 3;
Q( Valve - 6094 );
for ( int m = 0; m < 19; m++ )
Valve-=9;
int OSW = 4 * 2 + 1;
Q ( OSW );
OSW *= 2;
Q ( OSW + 1 );
Q ( OSW + 2 );
int l = 45;
Q ( l / 3 );
Valve = 0;
int notthree = (l + 9) / 3;
Q ( notthree );
}