import java.util.Arrays;
import java.util.Scanner;
import java.util.function.Predicate;
import java.util.stream.IntStream;

public class FindEvenOrOdd {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int [] bounds= Arrays.stream(sc.nextLine().split(" ")).mapToInt(Integer::parseInt).toArray();
        int [] arr = IntStream.range(bounds[0],bounds[1] + 1).map(i -> i++).toArray();
        String command = sc.nextLine();
        switch(command){
            case "odd":  Arrays.stream(arr).filter((i) ->!isEven.test(i))
                        .forEach(odd -> System.out.print(odd + " "));
                break;
            case "even": Arrays.stream(arr).filter((i) ->isEven.test(i))
                        .forEach(even -> System.out.print(even + " "));
                break;
        }
    }
    private static Predicate<Integer> isEven = (i) -> i%2==0;
}