#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
template <class T = int>
inline T readInt();
inline double readDouble();
inline int readUInt();
inline int readChar();
inline void readWord(char *s);
inline bool readLine(char *s);
inline bool isEof();
inline int getChar();
inline int peekChar();
inline bool seekEof();
inline void skipBlanks();
inline std::string readString();
template <class T>
inline void writeInt(T x, char end = 0, int len = -1);
inline void writeChar(int x);
inline void writeWord(const char *s);
inline void writeDouble(double x, int len = 0);
inline void flush();
static struct buffer_flusher_t {
  ~buffer_flusher_t() { flush(); }
} buffer_flusher;
using namespace std;
int n, m, l;
const int MAXN = 1e5 + 42;
int h[MAXN];
string pn[MAXN];
string nn[MAXN];
vector<int> z_function(const string &second) {
  int n = second.size();
  vector<int> z(n, 0);
  for (int i = 1, L = 0, R = 1; i < n; ++i) {
    z[i] = min(R - i, z[i - L]);
    while (i + z[i] < n && second[i + z[i]] == second[z[i]]) ++z[i];
    if (i + z[i] + !z[i] > R) L = i, R = i + z[i] + !z[i];
  }
  return z;
}
inline bool check(const string &pat, const string &rep) {
  int len = rep.size();
  for (int i = 0; i < n; ++i) {
    string second = pat + "#" + pn[i];
    auto tz = z_function(second);
    vector<int> z;
    for (int j = pat.size() + 1; j < tz.size(); ++j) {
      z.push_back(tz[j]);
    }
    bool have = 0;
    int pos_st = 0;
    for (int j = 0; j < nn[i].size(); ++j) {
      if (have) {
        if (j - pos_st + 1 <= len) {
          if (nn[i][j] != rep[j - pos_st]) return 0;
        } else {
          if (nn[i][j] != pn[i][j]) return 0;
        }
      } else if (z[j] == len) {
        have = 1;
        pos_st = j;
        --j;
        continue;
      } else {
        if (nn[i][j] != pn[i][j]) return 0;
      }
    }
  }
  return 1;
}
vector<int> same;
vector<int> dif;
inline pair<string, string> get_strs() {
  vector<int> lptr;
  vector<int> rptr;
  for (int sid : dif) {
    string pna = pn[sid];
    string nna = nn[sid];
    lptr.push_back(5000);
    rptr.push_back(-1);
    for (int i = 0; i < pna.size(); ++i) {
      if (pna[i] != nna[i]) {
        lptr.back() = min(lptr.back(), i);
        rptr.back() = i;
      }
    }
  }
  int lp = lptr[0];
  int rp = rptr[0];
  cerr << lp << ' ' << rp << endl;
  int ss = dif[0];
  while (lp > 0) {
    bool flag = 1;
    for (int i = 1; i < dif.size(); ++i) {
      int sid = dif[i];
      if (lptr[i] == 0 || !(pn[sid][lptr[i] - 1] == pn[ss][lp - 1] &&
                            nn[sid][lptr[i] - 1] == nn[ss][lp - 1])) {
        flag = 0;
        break;
      }
      --lptr[i];
    }
    if (!flag) break;
    --lp;
  }
  while (rp < pn[ss].size() - 1) {
    bool flag = 1;
    for (int i = 1; i < dif.size(); ++i) {
      int sid = dif[i];
      if (rptr[i] == pn[sid].size() - 1 ||
          !(pn[sid][rptr[i] + 1] == pn[ss][rp + 1] &&
            nn[sid][rptr[i] + 1] == nn[ss][rp + 1])) {
        flag = 0;
        break;
      }
      ++rptr[i];
    }
    if (!flag) break;
    ++rp;
  }
  cerr << lp << ' ' << rp << endl;
  return {pn[ss].substr(lp, rp - lp + 1), nn[ss].substr(lp, rp - lp + 1)};
}
int main() {
  n = readInt();
  int pos = 0;
  for (int i = 0; i < n; ++i) {
    pn[i] = readString();
  }
  for (int i = 0; i < n; ++i) {
    nn[i] = readString();
    if (nn[i] != pn[i]) {
      dif.push_back(i);
    } else {
      same.push_back(i);
    }
  }
  auto [pat, rep] = get_strs();
  if (check(pat, rep)) {
    writeWord("YES\n");
    writeWord(pat.c_str());
    writeChar('\n');
    writeWord(rep.c_str());
    writeChar('\n');
  } else {
    writeWord("NO\n");
  }
}
static const int buf_size = 4096;
static unsigned char buf[buf_size];
static int buf_len = 0, buf_pos = 0;
inline string readString() {
  const int MAX = 1e6 + 42;
  static char buf[MAX];
  readWord(buf);
  return string(buf);
}
inline bool isEof() {
  if (buf_pos == buf_len) {
    buf_pos = 0, buf_len = fread(buf, 1, buf_size, stdin);
    if (buf_pos == buf_len) return 1;
  }
  return 0;
}
inline int getChar() { return isEof() ? -1 : buf[buf_pos++]; }
inline int peekChar() { return isEof() ? -1 : buf[buf_pos]; }
inline bool seekEof() {
  int c;
  while ((c = peekChar()) != -1 && c <= 32) buf_pos++;
  return c == -1;
}
inline void skipBlanks() {
  while (!isEof() && buf[buf_pos] <= 32U) buf_pos++;
}
inline int readChar() {
  int c = getChar();
  while (c != -1 && c <= 32) c = getChar();
  return c;
}
inline int readUInt() {
  int c = readChar(), x = 0;
  while ('0' <= c && c <= '9') x = x * 10 + c - '0', c = getChar();
  return x;
}
template <class T>
inline T readInt() {
  int second = 1, c = readChar();
  T x = 0;
  if (c == '-')
    second = -1, c = getChar();
  else if (c == '+')
    c = getChar();
  while ('0' <= c && c <= '9') x = x * 10 + c - '0', c = getChar();
  return second == 1 ? x : -x;
}
inline double readDouble() {
  int second = 1, c = readChar();
  double x = 0;
  if (c == '-') second = -1, c = getChar();
  while ('0' <= c && c <= '9') x = x * 10 + c - '0', c = getChar();
  if (c == '.') {
    c = getChar();
    double coef = 1;
    while ('0' <= c && c <= '9') x += (c - '0') * (coef *= 1e-1), c = getChar();
  }
  return second == 1 ? x : -x;
}
inline void readWord(char *second) {
  int c = readChar();
  while (c > 32) *second++ = c, c = getChar();
  *second = 0;
}
inline bool readLine(char *second) {
  int c = getChar();
  while (c != '\n' && c != -1) *second++ = c, c = getChar();
  *second = 0;
  return c != -1;
}
static int write_buf_pos = 0;
static char write_buf[buf_size];
inline void writeChar(int x) {
  if (write_buf_pos == buf_size)
    fwrite(write_buf, 1, buf_size, stdout), write_buf_pos = 0;
  write_buf[write_buf_pos++] = x;
}
inline void flush() {
  if (write_buf_pos)
    fwrite(write_buf, 1, write_buf_pos, stdout), write_buf_pos = 0;
}
template <class T>
inline void writeInt(T x, char end, int output_len) {
  if (x < 0) writeChar('-'), x = -x;
  char second[24];
  int n = 0;
  while (x || !n) second[n++] = '0' + x % 10, x /= 10;
  while (n < output_len) second[n++] = '0';
  while (n--) writeChar(second[n]);
  if (end) writeChar(end);
}
inline void writeWord(const char *second) {
  while (*second) writeChar(*second++);
}
inline void writeDouble(double x, int output_len) {
  if (x < 0) writeChar('-'), x = -x;
  int t = (int)x;
  writeInt(t), x -= t;
  writeChar('.');
  for (int i = output_len - 1; i > 0; i--) {
    x *= 10;
    t = std::min(9, (int)x);
    writeChar('0' + t), x -= t;
  }
  x *= 10;
  t = std::min(9, (int)(x + 0.5));
  writeChar('0' + t);
}
