void main(){
  import std.stdio, std.string, std.conv, std.algorithm;

  int x; rd(x);

  auto ushi="ai1333".to!(char[]);
  while(x){
    ushi~='3';
    x-=100;
  }

  writeln(ushi);
}


void rd(T...)(ref T x){
  import std.stdio, std.string, std.conv;
  auto l=readln.split;
  assert(l.length==x.length);
  foreach(i, ref e; x){
    e=l[i].to!(typeof(e));
  }
}

