#include<stdio.h>

const int MAXN = 50;
int queue[MAXN];


int main() {
  int n, front, rear;
  while(scanf("%d", &n)==1 && n!=0){
      for(int i = 0; i < n; i++)
          queue[i] = i+1;
      front = 0;
      rear = n;
      while(front < rear-1) {
          front++;
          queue[rear] = queue[front];
          front++;
          rear++;
      }
      printf("%d\n", queue[front]);
  }
  return 0;
}