MagicString

import java.util.Scanner;

public class Test {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);
        int diff = Integer.parseInt(input.nextLine());

        boolean thereIsNoResult = true;

        for (int i = 1; i <= 5; i++) {
            if (i == 2) {
                continue;
            }

            for (int j = 1; j <= 5; j++) {
                if (j == 2) {
                    continue;
                }

                for (int j2 = 1; j2 <= 5; j2++) {
                    if (j2 == 2) {
                        continue;
                    }

                    for (int k = 1; k <= 5; k++) {
                        if (k == 2) {
                            continue;
                        }

                        for (int k2 = 1; k2 <= 5; k2++) {
                            if (k2 == 2) {
                                continue;
                            }

                            for (int l = 1; l <= 5; l++) {
                                if (l == 2) {
                                    continue;
                                }

                                for (int l2 = 1; l2 <= 5; l2++) {

                                    if (l2 == 2) {
                                        continue;
                                    }
                                    for (int m = 1; m <= 5; m++) {
                                        if (m == 2) {
                                            continue;
                                        }

                                        if (Math.abs(((i + j + j2 + k) - (k2 + l + l2 + m))) == diff) {

                                            thereIsNoResult = false;

                                            PrintDigitAsLetter(i);
                                            PrintDigitAsLetter(j);
                                            PrintDigitAsLetter(j2);
                                            PrintDigitAsLetter(k);
                                            PrintDigitAsLetter(k2);
                                            PrintDigitAsLetter(l);
                                            PrintDigitAsLetter(l2);
                                            PrintDigitAsLetter(m);
                                            System.out.println();

                                        }

                                    }
                                }
                            }
                        }
                    }
                }
            }
        }

        if (thereIsNoResult) {
            System.out.println("No");
        }

    }

    private static void PrintDigitAsLetter(int digit) {

        switch (digit) {
        case 1: System.out.print("k"); break;
        case 3: System.out.print("s"); break;
        case 4: System.out.print("n"); break;
        case 5: System.out.print("p"); break;
        }

    }
}