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from math import ceil
n = int(input('Введите размер стороны матрицы: '))
m = int(input('Введите вычисляемую строку: '))
while m < 1 or m > n:
print('Неверный номер строки')
m = int(input('Введите вычисляемую строку: '))
RIGHT, DOWN, LEFT, UP = range(4)
row = [0 for _ in range(n)]
current = [0, 0]
direction = RIGHT
xshift = 0
yshift = 0
for i in range(1, n ** 2 + 1):
if current[1] == m - 1:
row[current[0]] = i
if direction == RIGHT:
if current[0] + 1 >= n - ceil(xshift / 2):
direction = DOWN
current[1] += 1
xshift += 1
else:
current[0] += 1
elif direction == DOWN:
if current[1] + 1 >= n - yshift // 2:
direction = LEFT
current[0] -= 1
yshift += 1
else:
current[1] += 1
elif direction == LEFT:
if current[0] - 1 < 0 + xshift // 2:
direction = UP
current[1] -= 1
xshift += 1
else:
current[0] -= 1
elif direction == UP:
if current[1] - 1 < 0 + ceil(yshift / 2):
direction = RIGHT
current[0] += 1
yshift += 1
else:
current[1] -= 1
print(*row)
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