import java.util.Scanner;
public class Josephus {
private static class Node {
public int no;//
public Node next;//
public Node(int no) {
this.no = no;
}
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print(" :");
int totalNum = scanner.nextInt();
System.out.print(" :");
int cycleNum = scanner.nextInt();
Node header = new Node(1);
Node pointer = header;
for (int i = 2; i <= totalNum; i++) {
pointer.next = new Node(i);
pointer = pointer.next;
}
pointer.next = header;
//
System.out.println(" :");
while (pointer != pointer.next) {
for (int i = 1; i < cycleNum; i++) {
pointer = pointer.next;
}
System.out.println(pointer.next.no);
pointer.next = pointer.next.next;
}
System.out.println(pointer.next.no);
}
}