package com.web;
import java.util.Scanner;
/**
 * Created by.
 */
public class Permutation {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int sum = input.nextInt();
        int coinnum[] = new int[6];
        for (int i=0; i<6; i++){
            coinnum[i]=input.nextInt();
 
}
        solve(sum,coinnum);
}

    //硬幣面值
static int coin[]={1,5,10,50,100,500};
//貪心演算法
    //coinnum是每種硬幣個數
public static void solve(int sum, int coinnum[]){
        int ans = 0;
        for(int i=5; i>=0; i--){
            int n = Math.min(sum/coin[i],coinnum[i]);
sum = sum - n * coin[i];
ans += n;
}
        System.out
 
.println(ans);
}
}