public class Test {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int m = sc.nextInt();
int[][] arr = new int[n][m];
Random random = new Random();
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
arr[i][j] = random.nextInt(10);
}
}
for (int i = 0; i < n; i++) {
System.out.print("[");
for (int j = 0; j < m; j++) {
System.out.print(arr[i][j] + " ");
}
System.out.print("]");
System.out.println();
}
System.out.println();
int r_begin = 0, c_begin = 0;
while (r_begin <= n || c_begin <= m) {
for (int i = r_begin, j = c_begin; j < m && r_begin < n; j++)
System.out.print(arr[i][j] + " ");
r_begin++;
for (int i = r_begin, j = m - 1; i < n && c_begin < m; i++)
System.out.print(arr[i][j] + " ");
m--;
for (int i = n - 1, j = m - 1; j >= c_begin && r_begin < n; j--)
System.out.print(arr[i][j] + " ");
n--;
for (int i = n - 1, j = c_begin; i >= r_begin && c_begin < m; i--)
System.out.print(arr[i][j] + " ");
c_begin++;
}
}
}