N, K = map(int, input().split())
D = ['dummy'] + list(map(int, input().split()))

# 巡回置換の検出
peo = {i: False for i in D[1:]}
ans = 0
for ix, i in enumerate(D):
    if ix == 0 or peo[i] or i == ix:
        peo[i] = True
        continue 
    key = i
    peo[i] = True
    ans += 1
    _next = D[i]
    while _next != key:
        peo[_next] = True
        ans += 1
        _next = D[_next]


if K >= ans and K%2 == ans%2:
    print('YES')
else:
    print('NO')