import sys
if sys.platform =='ios':
	import clipboard
	a=clipboard.get()
	a = a.split('\n')
	text = '\n'.join(a)
	with open('input_file.txt','w') as f:
		f.write(text)
	sys.stdin = open('input_file.txt')
	
n,k = map(int,input().split())
P = sorted(list(map(int,input().split())))[::-1]

A = []
for i in range(n):
	A.append(P[i])
	if len(A) > k:
		while P[i] in A:
			A.remove(P[i])
		break
		
print(len(A))