public class Main {



    public static void main(String[] args) {
        int n = -18;
        int k = 0;
        if (n < 0) {
            System.out.print("minus-");
            n = -n;
        }
        int n1 = n;
        while (n1>0){
            k++;
            n1 = n1/10;
        }
        int [] a = new int [k];
        for (int i = 0; i < k; i++) {
            a[i] = n % 10;
            n = n/10;
        }

        for (int i = k-1; i > 0; i--) {
            if (a[i] == 0) System.out.print("null");
            if (a[i] == 1) System.out.print("eins");
            if (a[i] == 2) System.out.print("zwei");
            if (a[i] == 3) System.out.print("drei");
            if (a[i] == 4) System.out.print("vier");
            if (a[i] == 5) System.out.print("fuenf");
            if (a[i] == 6) System.out.print("sechs");
            if (a[i] == 7) System.out.print("sieben");
            if (a[i] == 8) System.out.print("acht");
            if (a[i] == 9) System.out.print("neun");
            System.out.print("-");
        }
        if (a[0] == 0) System.out.print("null");
        if (a[0] == 1) System.out.print("eins");
        if (a[0] == 2) System.out.print("zwei");
        if (a[0] == 3) System.out.print("drei");
        if (a[0] == 4) System.out.print("vier");
        if (a[0] == 5) System.out.print("fuenf");
        if (a[0] == 6) System.out.print("sechs");
        if (a[0] == 7) System.out.print("sieben");
        if (a[0] == 8) System.out.print("acht");
        if (a[0] == 9) System.out.print("neun");
    }
}