import sys

def input(): return sys.stdin.readline().strip()
def list2d(a, b, c): return [[c] * b for i in range(a)]
def list3d(a, b, c, d): return [[[d] * c for j in range(b)] for i in range(a)]
def list4d(a, b, c, d, e): return [[[[e] * d for j in range(c)] for j in range(b)] for i in range(a)]
def ceil(x, y=1): return int(-(-x // y))
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(N=None): return list(MAP()) if N is None else [INT() for i in range(N)]
def Yes(): print('Yes')
def No(): print('No')
def YES(): print('YES')
def NO(): print('NO')
sys.setrecursionlimit(10 ** 9)
INF = 10 ** 19
MOD = 10 ** 9 + 7
EPS = 10 ** -10

N, K = MAP()
A = [a-1 for a in LIST()]

cnt1 = cnt2 = 0
for i, a in enumerate(A):
    if i == a:
        pass
    elif A[a] == i:
        cnt1 += 1
    else:
        cnt2 += 1
cnt = cnt1 // 2 + max(cnt2-1, 0)
if cnt <= K and cnt % 2 == K % 2:
    YES()
else:
    NO()