#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <cassert>
#include <fstream>
#include <utility>
#include <functional>
#include <time.h>
#include <stack>
#include <array>
#include <list>
#include <atcoder/all>
#define popcount __builtin_popcount
using namespace std;
using namespace atcoder;
typedef long long ll;
typedef pair<int, int> P;
int n; ll k;
int c[10];
int n1,n2;
const ll mask=(1ll<<44)-1;
map<ll, vector<ll>> mp;
//map<pair<int, ll>, int> mp;
int ans;
void dfs(ll v, ll r, int t){
    if(t==n1){
        mp[v].push_back(r);
        return;
    }
    ll r1=(r*10+1)&mask;
    for(int i=1; i<=9; i++){
        ll d=((v>>((i-1)<<2))&15);
        if(c[i]>d){
            v+=(1ll<<((i-1)<<2));
            dfs(v, r1, t+1);
            v-=(1ll<<((i-1)<<2));
        }
        r1++;
        if(r1>=k) r1-=k;
    }
}
using lll=__int128_t;
ll q;
ll c0;
void dfs2(ll v, ll r, int t){
    if(t==n2){
        ll x=(k-((lll)q*r&mask));
        if(x>=k) x-=k;
        ll w=c0-v;
        auto itr=mp.find(w);
        if(itr!=mp.end()){
            for(auto y:itr->second){
                ans=max(ans, __builtin_ffsll(x^y));
            }
        }
        return;
    }
    ll r1=(r*10+1)&mask;
    for(int i=1; i<=9; i++){
        ll d=((v>>((i-1)<<2))&15);
        if(c[i]>d){
            v+=(1ll<<((i-1)<<2));
            dfs2(v, r1, t+1);
            v-=(1ll<<((i-1)<<2));
        }
        r1++;
        if(r1>=k) r1-=k;
    }
}
int main()
{
	cin>>n;
    k=(1ll<<44);
	for(int i=1; i<=9; i++){
		cin>>c[i];
        c0^=((ll)c[i]<<((i-1)*4));
	}
    n1=min(6, n);
    dfs(0, 0, 0);
    if(n1==n){
        for(auto x:mp[c0]){
            ans=max(ans, __builtin_ffsll(x));
        }
        cout<<ans-1<<endl;
        return 0;
    }
    n2=n-n1;
    q=1;
    for(int i=0; i<n1; i++) q=q*10%k;
    dfs2(0, 0, 0);
    cout<<ans-1<<endl;
    return 0;
}