Xor Problem

There is an array A of first N elements $A_1$,$A_2$.....$A_N$ After the N element of array A , it will be specified below: - $A_x$=$A_{x-1}$ xor $A_{x-2}$ xor.....xor $A_{x-N}$ (x$\geq$ N+1) Then find the value of $A_k$. However, in the problem statement xor Represents exclusive OR ### Input - First line will contain,two integers $N, k$. - Next line will contain N space separated integers $A_1