// ---------------
// InputOutput.c++
// ---------------

#include <cassert>  // assert
#include <iostream> // cin, cout, endl, ios_base

int main () {
    using namespace std;
    cout << "InputOutput.c++." << endl;

    ios_base::sync_with_stdio(false); // turn off synchronization with C I/O

    char c;
    while (cin >> c)
        cout << c;
    cout << endl;

    cout << "Done." << endl;
    return 0;}