#include "xparameters.h"
#include "stdio.h"

int main (void) 
   {
   int i, num_eles, vals[100];
	
   scanf("%d", &num_eles);
   for ( i = 0; i < num_eles; i++ )
      scanf("%d", &vals[i]);
		
   printf("%d\r\n", num_eles);
   for ( i = 0; i < num_eles; i++ )
      printf("%d\r\n", vals[i]);
   return(0);
   }