public class Euler836 {
    public static String solve() {
        String[] words = {
                "affine", "plane",
                "radically", "integral", "local", "field",
                "open", "oriented", "line", "section",
                "jacobian",
                "orthogonal", "kernel", "embedding"
        };
        StringBuilder ans = new StringBuilder();
        for (String w : words) {
            ans.append(Character.toLowerCase(w.charAt(0)));
        }
        return ans.toString();
    }

    public static void main(String[] args) {
        System.out.println(solve());
    }
}