#include<stdio.h>
int main() {
    int rows,cols;
    scanf("%d",&rows);
    scanf("%d",&cols);
    if(rows < 0 || cols < 0) {
        printf("Invalid input\n");
        return 0;
    }
    int matrix[100][100];
    for (int i = 0;i < rows; i++) {
        for(int j=0;j<cols; j++) {
            scanf("%d",&matrix[i][j]);
        }
    }
    for ( int i =0;i<rows;i++) {
        for (int j=0;j<cols/2;j++) {
            int temp = matrix[i][j];
            matrix[i][j] = matrix[i][j];
            matrix[i][cols - j -1] = temp;
        }
    }
    for (int i =0:i<rows/2;i++) {
        for (int j = 0; j<cols;j++) {
            int temp=matrix[i][j];
            matrix[i][j]=matrix[rows - i -1][j];
            matrix[rows - i -1][j] = temp;
        }
    }
    for(int i = 0;i<rows;i++) {
        for(int j = 0;j<cols;j++) {
            printf("%d", matrix[i][j]);
        }
        printf("%d",matrix[i][j]);
    }
    return 0;