mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    N = int(input())
    A = list(map(int, input().split()))

    inc = [0] * N
    dec = [0] * N
    for i in range(1, N):
        if A[i] > A[i-1]:
            inc[i] = inc[i-1] + 1
        else:
            inc[i] = 0
        if A[i] < A[i-1]:
            dec[i] = dec[i-1] + 1
        else:
            dec[i] = 0

    inc_r = [0] * N
    dec_r = [0] * N
    for i in range(N-2, -1, -1):
        if A[i] > A[i+1]:
            inc_r[i] = inc_r[i+1] + 1
        else:
            inc_r[i] = 0
        if A[i] < A[i+1]:
            dec_r[i] = dec_r[i+1] + 1
        else:
            dec_r[i] = 0

    ans = 0
    for i in range(N):
        ans = max(ans, min(inc[i], inc_r[i]), min(dec[i], dec_r[i]))
    print(ans)


if __name__ == '__main__':
    main()