arr = [[1, 2, 6, 9], [1, 2, 3, 1], [7, 1, 3, 5], [1, 8, 7, 5]] n = len(arr[0]) i = 0 for j in range(0, n-1): print(arr[i][j], end = ' ') k = 1 for i in range(0, n): for j in range(n, 0, -1): if(j == n-k): print(arr[i][j], end = ' ') break; k+= 1 # Print last row i = n-1; for j in range(0, n): print(arr[i][j], end = ' ')