N,K=map(int,input().split())
p=list(map(int,input().split()))
p_set=sorted(list(set(p)))[::-1]
p_new={}
for i in p_set:
    p_new[i]=p.count(i)
num=0
i=0
while num+p_new[p_set[i]]<=K:
    num+=p_new[p_set[i]]
    i+=1
print(num)