#include<cstdio>
#include<cstring>
#include<string>

using namespace std;

const char iname[]="nums.in";
const char oname[]="nums.out";
const int maxn=100005;

char s[maxn];

struct trie
{
    string s;
    int v;
} a[maxn];

 bool operator<(const trie& a,const trie& b)
    {
        if(a.s.length()!=b.s.length())
            return a.s.compare(b.s)<0;
        return a.s.length()<b.s.length();
    }

int n,i,j,k;

int main()
{
    freopen(iname,"r",stdin);
    freopen(oname,"w",stdout);
    scanf("%d\n",&n);
    for(i=1;i<=n;++i)
    {
        fgets(s,sizeof(s),stdin);
        if(s[0]=='1')
            a[++k].s=s,a[k].v=i;
    }

    sort(a+1,a+k+1);
    /*for(i=1;i<=k;++i)
        printf("%s",a[i].s.c_str());
    */
    fclose(stdin);
    fclose(stdout);

    return 0;
}