import sys
from itertools import permutations

input = lambda :sys.stdin.readline().rstrip()
mi = lambda :map(int,input().split())
li = lambda :list(mi())

import random

def cmb(n, r, mod):
    if ( r<0 or r>n ):
        return 0
    return (g1[n] * g2[r] % mod) * g2[n-r] % mod

mod = 998244353
N = 2*10**5
g1 = [1]*(N+1)
g2 = [1]*(N+1)
inverse = [1]*(N+1)

for i in range( 2, N + 1 ):
    g1[i]=( ( g1[i-1] * i ) % mod )
    inverse[i]=( ( -inverse[mod % i] * (mod//i) ) % mod )
    g2[i]=( (g2[i-1] * inverse[i]) % mod )
inverse[0]=0

def brute(N,M,A):
    tmp = [-1] * N
    def dfs(i):
        if i == N:
            for j in range(N):
                s,b = 0,0
                for k in range(N):
                    if tmp[k] < tmp[j]:
                        s+= 1
                    elif tmp[j] < tmp[k]:
                        b += 1
                if max(s,b)!=A[j]:
                    return 0
            #print(tmp)
            return 1
        
        res = 0
        for a in range(1,M+1):
            tmp[i] = a
            res += dfs(i+1)
            tmp[i] = -1
        return res
    return dfs(0)


def solve_brute(N,M,A):
    mask = 2**M-1
    while len(A)!=1:
        A = [((A[i]+A[i+1])**2) & mask for i in range(len(A)-1)]
    return A[0]

for _ in range(int(input())):
    N,M = mi()
    A = li()

    if N <= 2*M+10:
        print(solve_brute(N,M,A))
        continue

    res = 0
    for i in range(N):
        if A[i] & 1 and (N-1) & i == 1:
            res ^= 1
    print(res)