编辑代码

m=input()
n=int(input())
for i in range(n):
    for j in range(n-i-1):
        print(' ',end='')
    for k in range(2*i+1):
        print(m,end='')
    print(' ')
for i in range(n-1):
    for j in range(i+1):
        print(' ',end='')
    for k in range(2*(n-i)-3):
        print(m,end='')
    print(' ')