import java.util.Arrays;
import java.util.Scanner;

public class Yuki1 {
    
    public static void main(String[] argas) {
    
        Scanner scan = new Scanner(System.in);
        // 箱の幅
        int box = scan.nextInt();
        //int box = 16;
        // ブロックの数
        int blockCount = scan.nextInt();
        //int blockCount = 3;
        int num = scan.nextInt();
        
        int blockWidth[] = new int [num];
        //int blockWidth[] = {4,5,1,1};
        
        for (int i = 0; i <= num; i++) {
            blockWidth[i] = scan.nextInt();
        }
        
        Arrays.sort(blockWidth);
        for(int i = 0; i< 3; i++){
            System.out.println(blockWidth[i]);
        }
        
        
        int boxWidthAll = 0;
        int boxWidthAllCount = 0;
        
        while(box>boxWidthAll && blockCount>boxWidthAllCount){
            
            boxWidthAll +=blockWidth[boxWidthAllCount];

            if(box>boxWidthAll) {
                boxWidthAllCount++;
            }
        }
        
        System.out.println(boxWidthAllCount);
    }    
}