Consider a xor pyramid where each number is the xor of lower-left and lower-right numbers. Here is an example pyramid:
Given the bottom row of the pyramid, your task is to find the numbers on the $k$ -th row from the top.
The first line has two integers $n$ and $k$ : the size of the pyramid and the given row.
The next line has $n$ integers $a_1,a_2,\dots,a_n$ : the bottom row of the pyramid.
Print $k$ integers: the numbers on the $k$ -th row from the top.
8 5 2 10 5 12 9 5 1 5
· \n · · · · · · · \n
1 10 5 1 8
· · · · \n