#include <bits/stdc++.h>
using namespace std;
const int Imx = 2147483647;
const long long Lbig = 2e18;
const int mod = 1e9 + 7;
struct fastio {
  char s[100000];
  int it, len;
  fastio() { it = len = 0; }
  inline char get() {
    if (it < len) return s[it++];
    it = 0;
    len = fread(s, 1, 100000, stdin);
    if (len == 0)
      return EOF;
    else
      return s[it++];
  }
  bool notend() {
    char c = get();
    while (c == ' ' || c == '\n') c = get();
    if (it > 0) it--;
    return c != EOF;
  }
} _buff;
inline long long getnum() {
  long long r = 0;
  bool ng = 0;
  char c;
  c = _buff.get();
  while (c != '-' && (c < '0' || c > '9')) c = _buff.get();
  if (c == '-') ng = 1, c = _buff.get();
  while (c >= '0' && c <= '9') r = r * 10 + c - '0', c = _buff.get();
  return ng ? -r : r;
}
template <class T>
inline void putnum(T x) {
  if (x < 0) putchar('-'), x = -x;
  register short a[20] = {}, sz = 0;
  while (x) a[sz++] = x % 10, x /= 10;
  if (sz == 0) putchar('0');
  for (int i = sz - 1; i >= 0; i--) putchar('0' + a[i]);
}
inline char getreal() {
  char c = _buff.get();
  while (c == ' ' || c == '\n') c = _buff.get();
  return c;
}
int n;
char s[11];
set<long long> st[70011];
long long geths(string &v) {
  long long ret = 0;
  for (int i = 0; i < 9; i++) {
    ret = ret * 11 + s[i] - '0' + 1;
  }
  return ret;
}
map<long long, int> cnt;
void out(long long x) {
  char tmp[10] = {};
  for (int i = 8; i >= 0; i--) {
    tmp[i] = '0' + x % 11 - 1;
    x /= 11;
    if (x == 0) break;
  }
  for (int i = 0; i < 9; i++)
    if (tmp[i]) putchar(tmp[i]);
  puts("");
}
int main() {
  cin >> n;
  for (int i = 1; i <= n; i++) {
    scanf("%s", s);
    for (int j = 0; j < 9; j++) {
      long long hs = 0;
      for (int k = j; k < 9; k++) {
        hs = hs * 11 + s[k] - '0' + 1;
        st[i].insert(hs);
      }
    }
    for (__typeof((st[i]).begin()) it = (st[i]).begin(); it != (st[i]).end();
         it++) {
      cnt[*it]++;
    }
  }
  for (int i = 1; i <= n; i++) {
    long long mn = n + 1, mnid = -1;
    for (__typeof((st[i]).begin()) it = (st[i]).begin(); it != (st[i]).end();
         it++) {
      int &v = cnt[*it];
      if (v < mn) {
        mn = v;
        mnid = *it;
      }
    }
    out(mnid);
  }
  return 0;
}
