#include <bits/stdc++.h>
using namespace std;
char ans[10][20];
int main() {
  string s;
  cin >> s;
  int kol = 0, ind1 = 0, ind2 = 0;
  for (int i = 1; i < s.size(); i++)
    for (int j = 0; j < i; j++)
      if (s[i] == s[j]) {
        kol = i - j;
        ind1 = j;
        ind2 = i;
      }
  ans[0][kol / 2 + kol % 2 - 1] = s[ind1];
  int uk = kol / 2 + kol % 2 - 2, uk2 = 0, f = 0;
  for (int i = ind1 + 1; i < ind2; i++) {
    if (f == 0) {
      if (uk == -1) {
        uk = 0;
        uk2 = 1;
        f = 1;
      }
    }
    ans[uk2][uk] = s[i];
    if (f == 0)
      uk--;
    else
      uk++;
  }
  if (kol == 1) {
    cout << "Impossible\n";
    return 0;
  }
  f = 0;
  uk = kol / 2 + kol % 2;
  uk2 = 0;
  for (int i = ind1 - 1; i >= 0; i--) {
    if (f == 0 && uk == 13) {
      f = 1;
      uk = 12;
      uk2 = 1;
    }
    ans[uk2][uk] = s[i];
    if (f == 0)
      uk++;
    else
      uk--;
  }
  uk = kol / 2;
  uk2 = 1;
  f = 0;
  for (int i = ind2 + 1; i < s.size(); i++) {
    if (f == 0 && uk == 13) {
      f = 1;
      uk = 12;
      uk2 = 0;
    }
    ans[uk2][uk] = s[i];
    if (f == 0)
      uk++;
    else
      uk--;
  }
  for (int i = 0; i < 2; i++) {
    for (int j = 0; j < 13; j++) cout << ans[i][j];
    cout << "\n";
  }
  return 0;
}
