import java.util.Arrays;
import java.util.Scanner;
import java.util.function.IntPredicate;
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": arr = Arrays.stream(arr).filter(isOdd).toArray();
                break;
            case "even": arr = Arrays.stream(arr).filter(isEven).toArray();
                break;
        }
        Arrays.stream(arr).forEach(element -> System.out.print(element + " "));
    }
    private static IntPredicate isEven = (i) -> i%2==0;
    private static IntPredicate isOdd = (i) -> i%2==1;
}