two_mountain_pattern.py

n = int(input())

for i in range(n):
    for j in range(n-i-1):
        print(" ",end=" ")
    for j in range(i+1):
        print("*",end=" ")
    for j in range(i):
        print("*",end=" ")
    for j in range(n-i-1):
        print(" ",end=" ")
    for j in range (n-i-1):
        print(" ",end=" ")
    for j in range(i+1):
        print("*",end=" ")
    for j in range(i):
        print("*",end=" ")
    print()