#include<stdio.h>
int main
{
   int n;
   scanf("%d", n);
   if(n < 0)
   {
      printf("Invalid input");
      return 0;
   }
   int arr[n];
   for (int i = 0; i < n; i++){
       scanf("%d", &arr[i]);
   }
   for (int i = 0; i < n - i - 1; j++){
       for (int j = 0; j < n - i - 1; j++) {
           if (arr[j] > arr[j + 1]) {
           int temp = arr[j];
           arr[j] = arr[j + 1];
           arr[j + 1 = temp;]
          }
      }
   }
    for (int i = 0; i< n; i++){
    printf("%d", arr[i]);
    }
return 0;
}