#include <bits/stdc++.h>
using namespace std;
long long ans1 = LONG_LONG_MIN;
long long expo(long long x, long long n, long long M) {
  if (n == 0)
    return 1;
  else if (n % 2 == 0)
    return (expo((x * x) % M, n / 2, M)) % M;
  else
    return (x * expo((x * x) % M, (n - 1) / 2, M)) % M;
}
bool sortbysec(pair<pair<long long, long long>, long long> p1,
               pair<pair<long long, long long>, long long> p2) {
  if (p1.first.first == p2.first.first)
    return p1.first.second > p2.first.second;
  return p1.first.first < p2.first.first;
}
long long solve(char cc) {
  if (cc == 'f')
    return 1;
  else if (cc == 'e')
    return 2;
  else if (cc == 'd')
    return 3;
  else if (cc == 'a')
    return 4;
  else if (cc == 'b')
    return 5;
  else
    return 6;
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long i, j, k, a, b, c, t, x, y, n, m, z, flag = 0, ans = 0, sum = 0;
  t = 1;
  while (t--) {
    string st, pt;
    cin >> st;
    n = st.length();
    vector<int> freq(27, 0);
    char cc;
    for (i = 0; i < n; i++) {
      freq[st[i] - 65]++;
      if (freq[st[i] - 65] == 2) {
        cc = st[i];
        break;
      }
    }
    x = y = -1;
    for (i = 0; i < 27; i++) {
      if (st[i] == cc) {
        if (x == -1)
          x = i;
        else
          y = i;
      }
    }
    z = y - x;
    if (z == 1) {
      cout << "Impossible";
      return 0;
    }
    vector<char> c1(15);
    vector<char> c2(15);
    z -= 1;
    c1[12 - z / 2] = cc;
    i = 12 - z / 2;
    i++;
    a = x + 1;
    while (i < 13) {
      c1[i] = st[a];
      a++;
      i++;
    }
    j = 12;
    while (a < y) {
      c2[j] = st[a];
      a++;
      j--;
    }
    pt = "";
    for (k = y + 1; k < n; k++) pt += st[k];
    for (k = 0; k < x; k++) pt += st[k];
    long long nn = pt.length();
    k = 0;
    for (c = j; c >= 0 && k < nn; c--) {
      c2[c] = pt[k];
      k++;
    }
    for (c = 0; k < nn; c++) {
      c1[c] = pt[k];
      k++;
    }
    for (i = 0; i < 13; i++) {
      cout << c1[i];
    }
    cout << "\n";
    for (i = 0; i < 13; i++) {
      cout << c2[i];
    }
  }
  return 0;
}
