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

public class Reverse {
     // :NOTE: numStr? -- maybe you want to name it "row" or "line", String is a class in Java?
    public static int[][] addLineInMatrix(int[][] matrixInput, int numStr) {
        if (matrixInput.length == numStr + 1) {
            int[][] matrixOutput = new int[matrixInput.length * 2][];
            for (int i = 0; i < matrixInput.length; i++) {
                matrixOutput[i] = new int[matrixInput[i].length];
                System.arraycopy(matrixInput[i], 0, matrixOutput[i], 0, matrixInput[i].length);
            }
            Arrays.fill(matrixOutput, matrixInput.length, matrixInput.length*2, new int[1]);
            matrixInput = matrixOutput;
        }
        return matrixInput;
    }
    public static int[] addDigitInMatrix(int[] arrayInput, int numDig) {
        if (arrayInput.length == numDig + 1) {
            int[] arrayOutput = new int[arrayInput.length * 2];
            System.arraycopy(arrayInput, 0, arrayOutput, 0, arrayInput.length);
            arrayInput = arrayOutput;
        }
        return arrayInput;
    }
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int[][] matrix = new int[1][1];
        int[] matrixSize = new int[1];
        // :NOTE: same - naming
        int numStr = 0;
        int numElem = 0;
        while (in.hasNextLine()) {
            Scanner str = new Scanner(in.nextLine());
            while (str.hasNextInt()) {
                matrix[numStr][numElem] = str.nextInt();
                matrix[numStr] = addDigitInMatrix(matrix[numStr], numElem);
                numElem++;
            }
            matrix = addLineInMatrix(matrix, numStr);
            matrixSize = addDigitInMatrix(matrixSize, numStr);
            numStr++;
            matrixSize[numStr - 1] = numElem;
            numElem = 0;
        }
        in.close();
        for (int i = numStr - 1; i > -1; i--) {
            for (int j = matrixSize[i] - 1; j > -1; j--) {
                System.out.print(matrix[i][j] + " ");
            }
            System.out.println();
        }
    }
}