N, K = map(int, input().split())
P = list(map(int, input().split()))
from collections import Counter
C = Counter(P)
C = sorted(C.items(), reverse=True)
cnt = 0
for k,v in C:
  if cnt+v>K:
    print(cnt)
    cnt = K+1
    break
  cnt += v
if cnt<=K:print(cnt)