if __name__ == '__main__':
n, c = input().split()
m = 1
s = 1
while int(n) >= s:
m += 2
s += 2 * m
s -= 2 * m
m -= 2
for i in range(m, 0, -2):
r = ""
for j in range(0, i):
r += c
for j in range(0, (m - i) // 2):
r = " " + r
print(r)
for i in range(3, m + 1, 2):
r = ""
for j in range(0, i):
r += c
for j in range(0, (m - i) // 2):
r = " " + r
print(r)
print(int(n) - s)
05-19
457
