import java.util.Arrays;
import java.util.Scanner;

public class Reverse {
    // :NOTE: naming -- it's better to name "matrix" not "mass", do not abbreviate words incomprehensibly
    public static int[][] addLineInMass(int[][] mass, int numStr) {
        // :NOTE: same -- naming
        if (mass.length == numStr + 1) {
            // :NOTE: mass1? -- not understandable name
            int[][] mass1 = new int[mass.length * 2][];
            for (int i = 0; i < mass.length; i++) {
                mass1[i] = new int[mass[i].length];
                System.arraycopy(mass[i], 0, mass1[i], 0, mass[i].length);
            }
            Arrays.fill(mass1, mass.length, mass.length*2, new int[1]);
            mass = mass1;
        }
            return mass;
    }
    // :NOTE: same -- naming
    public static int[] addDigitInMass(int[] mass, int numDig) {
        if (mass.length == numDig + 1) {
            // :NOTE: same -- naming
            int[] mass1 = new int[mass.length * 2];
            System.arraycopy(mass, 0, mass1, 0, mass.length);
            mass = mass1;
        }
        return mass;
    }
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // :NOTE: same -- naming (massiv is not a word from English)
        int[][] mass = new int[1][1];
        // :NOTE: same -- naming
        int[] massSize = new int[1];
        int numStr = 0;
        int numElem = 0;
        while (in.hasNextLine()) {
            Scanner str = new Scanner(in.nextLine());
            while (str.hasNextInt()) {
                mass[numStr][numElem] = str.nextInt();
                mass[numStr] = addDigitInMass(mass[numStr], numElem);
                numElem++;
            }
            mass = addLineInMass(mass, numStr);
            massSize = addDigitInMass(massSize, numStr);
            numStr++;
            massSize[numStr - 1] = numElem;
            numElem = 0;
        }
        // :NOTE: your scanner is not used in the next "for" block of code, so you should close it here
        for (int i = numStr - 1; i > -1; i--) {
            for (int j = massSize[i] - 1; j > -1; j--) {
                System.out.print(mass[i][j] + " ");
            }
            System.out.println();
        }
        in.close();
    }
}