ll@m,a[20001]{},d[20001]{};
rep(i,1,20001){
	a[i]=a[i-1]+i;
}
rrep(i,1,20001){
	while(m>=a[i]){
		m-=a[i];
		++d[i];
	}
}
rep(i,1,20001){
	wtN("co");
	rep(d[i])wtN("n");
}