from collections import Counter
from bisect import bisect_right

n, k = map(int, input().split())
P = list(map(int, input().split()))

counter = Counter(P)
PN = list(counter.items())
PN.sort(key=lambda x: -x[0])
C = [0]
for _, num in PN:
    C.append(C[-1] + num)
idx = bisect_right(C, k)
print(C[idx - 1])