2 1
1 1
 4 1
2 2 1 1
 10 1
2 6 3 4 2 4 4 3 2 1
 2 1
999152 999153
 8 1000000
1 1 5 1000000 1000000 2 2 2
 9 2
1 6 1 5 5 8 6 8 7
 15 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
 1 4
8
 10 1
6 3 1 3 6 4 1 3 6 4
 10 1
1 2 3 5 6 8 10 11 9 4
 7 2
1 5 5 8 9 8 8
 2 1000000
1 1000000
 8 2
3 13 9 8 3 13 9 14
 1 1
1
 2 1
1 2

2
 2
 4
 1
 2
 4
 15
 1
 7
 2
 4
 1
 5
 1
 1

def update_victims(sizes):
    victims = []
    for i in range(len(sizes)-1):
        victims.append(sizes[i+1] - sizes[i])
    victims.append(-1)
    return victims

def main():
    n, K = input().split(' ')

    n = int(n)
    K = int(K)

    sizes = [int(i) for i in input().split(' ')]
    sizes.sort()

    victims = update_victims(sizes)
    while K in victims:
        sizes = [sizes[i] for i in range(len(sizes)) if victims[i] != K]
        victims = update_victims(sizes)

    print(len(sizes))

if __name__ == '__main__':
    main()