import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################
n = ni()
a = [na()for i in range(n)]
ok = 1
for i in range(n):
    for j in range(n):
        for k in range(n):
            if a[a[i][j]][k] != a[i][a[j][k]]:
                ok = 0
f = 0
for e in range(n):
    g = 1
    for i in range(n):
        if not a[e][i] == a[i][e] == i:
            g = 0
    for i in range(n):
        z = 0
        for j in range(n):
            if e == a[i][j] == a[j][i]:
                z = 1
        if z^1:
            g = 0
    if g:
        f = 1
        break

if ok and f:
    Yes()
else:
    No()