#include <iostream>
#include <vector>
using namespace std;
int main() {
string input;
cin >> input;
vector <char> even, odd;
for (int i = 0; i < input.length(); i++){
if (i % 2){
odd.push_back(input[i]);
}else{
even.push_back(input[i]);
}
}
for (int i = 0; i < even.size(); i++){
cout << even[i];
}
cout << endl;
for (int i = 0; i < odd.size(); i++){
cout << odd[i];
}
cout << endl;
}