Envío 7071

Código

n = int(input())
squareData = []
for i in range(0, n):
    squareData.append([int(item) for item in input().split()])

result = [0] * ((2 * n) + 2)
for i in range(0, n):
    sumJ = 0
    for j in range(0, n):
        sumJ = sumJ + squareData[i][j]
        result[j] = result[j] + squareData[i][j]
        if i == j: 
            result[(2 * n)] = result[(2 * n)] + squareData[i][j]
        if i == n - j - 1: 
            result[(2 * n) + 1] = result[(2 * n) + 1] + squareData[i][j]
    result[n + i] = sumJ

response = "Yes"
for i in range(0, len(result) - 1):
    if result[i] != result[i + 1]:
        response = "No"
        break

print(response)