import sys
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()
d = [na() for i in range(n)]

f1 = 1
f2 = 1
f3 = 1
f4 = 1

for i in range(n):
    for j in range(n):
        if (i == j) != (d[i][j] == 0):
            f1 = 0

for i in range(n):
    for j in range(n):
        if d[i][j] != d[j][i]:
            f2 = 0

for i in range(n):
    for j in range(n):
        for k in range(n):
            if d[i][j] > d[i][k] + d[k][j]:
                f3 = 0
            if d[i][j] > max(d[i][k], d[k][j]):
                f4 = 0


if f1 and f2 and f3:
    Yes()
else:
    No()

if f1 and f2 and f4:
    Yes()
else:
    No()