import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Main {

    public static void main(String[] args) {
        contest3();
    }

    public static void contest3() {

        try {

            byte[] buf = new byte[10];
            int index = -1;
            int v;
            while ((v = System.in.read()) != 10 && v != 13) {
                buf[++index] = (byte) v;
            }
            if (v == 13) System.in.read(); // if CR LF used, read LF

            byte[] numberBytes = new byte[index + 1];
            System.arraycopy(buf, 0, numberBytes, 0, index + 1);
            int size = Integer.parseInt(new String(numberBytes));
            if (size == 0) return;


            char[] previousMass = {'!'};  // Что точто не повторялось

            StringBuilder stringBuilder = new StringBuilder();

            for (int i = 0; i < size; i++) {

                char[] tmpCurrentMass = new char[32];
                int currentMassIndex = 0;


                while (true) {
                    int currentByte;
                    if ((currentByte = System.in.read()) >= '!' && currentByte <= '}') {
                        tmpCurrentMass[currentMassIndex] = (char) currentByte;
                        currentMassIndex++;
                    } else break;
                }

                char[] currentMass = new char[currentMassIndex];

                System.arraycopy(tmpCurrentMass, 0, currentMass, 0, currentMassIndex);

                if (currentMass.length == previousMass.length) {
                    boolean isContinue = false;

                    for (int i1 = 0; i1 < currentMass.length; i1++) {
                        if (currentMass[i1] != previousMass[i1])
                            isContinue = true;
                    }
                    if (!isContinue) continue;
                }

                previousMass = currentMass;
                for (int i1 = 0; i1 < currentMass.length; i1++) {
                    stringBuilder.append(currentMass[i1]);
                }
                stringBuilder.append('\n');

                if (i % 250 == 0) System.gc();

            }

            System.out.print(stringBuilder.toString());

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}