def goriz(board):
    for i in range(9):
        sum = 0
        for j in range(9):
            sum += board[i][j]
        if sum != 45:
            return 0
    return 1

def vert(board):
    for i in range(9):
        sum = 0
        for j in range(9):
            sum += board[j][i]
        if sum != 45:
            return 0
    return 1

def kvadr(board, i, j):
    sum = 0
    for a in range(3):
        for b in range(3):
            sum += board[i + a][j + b]
    if sum != 45:
        return 0
    else:
        return 1

def skv(board):
    res = 1
    for i in range(3):
        for j in range(3):
            res = res & kvadr(board, i * 3, j * 3)
    return res

def solution(board):
    res = 1
    sum = 0
    for i in range(9):
        for j in range(9):
            sum += board[i][j]
    if sum != 405:
        res = 0
    return res & skv(board) & goriz(board) & vert(board)



s = [
  [4, 3, 4, 6, 7, 8, 9, 1, 3],
  [6, 7, 2, 1, 9, 5, 3, 4, 8],
  [2, 9, 8, 3, 4, 2, 5, 6, 6],
  [8, 5, 9, 7, 6, 1, 4, 2, 3],
  [4, 2, 6, 8, 5, 3, 7, 9, 1],
  [7, 1, 3, 9, 2, 4, 8, 5, 6],
  [9, 6, 1, 5, 3, 7, 2, 8, 4],
  [2, 8, 7, 4, 1, 9, 6, 3, 5],
  [3, 4, 5, 2, 8, 6, 1, 7, 9]
]
res = solution(s)
print(res)