n = int(input())
matrix = []
for _ in range(n):
    matrix.append(list(map(int, input().split())))

e_candidate = [True] * n
for i in range(n):
    for j in range(n):
        if e_candidate[j] == True and (matrix[i][j] != matrix[j][i] or matrix[j][i] != i):
            e_candidate[j] = False

for k in range(n):
    for i in range(n):
        f = False
        for j in range(n):
            if e_candidate[k] == True and (matrix[i][j] == matrix[j][i] == k):
                f = True
        if f == False:
            break
        if i == n - 1:
            print("Yes")
            exit()

print("No")