#include<stdio.h>
#include<stdlib.h>

#define L_MAX 10000

void n_block(int l,int n,int *block){
  int counter = 0,i = 0,l_sum = 0,sum = L_MAX,p;
  int *a;
  while(l_sum < l){
  counter++;
    for(i=0;i<n;i++){
      if(p < *(block+i) && *(block+i) < sum){
	sum = *(block+i);
	a = block+i;
      }
    }
    printf("%d ",sum);
    l_sum += sum;
    p = sum;
    sum = L_MAX;
    *a = L_MAX;
  }
  printf("%d\n",counter-1);
}

int main(){
  int l,n,*b;
  b = (int*)malloc(sizeof(int));

  scanf("%d",&l);
  scanf("%d",&n);

  int i;
  for(i=0;i<n;i++){
    scanf("%d",b+i);
  }

  n_block(l,n,b);

  return 0;
}