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import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.Stream;
/**
* 全排列
*/
public class Main46 {
public static void main(String[] args) {
int n=5;
Scanner s = new Scanner(System.in);
n = s.nextInt();
List<String> list = IntStream.rangeClosed(1, n).mapToObj(Integer::toString).collect(Collectors.toList());
Stream<String> stream = list.stream();
for(int i=1;i<n;i++){
stream=stream.flatMap(
str->list.stream()
.filter(temp->!str.contains(temp))
.map(e->str.concat(" "+e))
);
}
String collect = stream.sorted().collect(Collectors.joining("\n", "", ""));
System.out.println(collect);
}
}
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