Python :

n = int(input())
a = input()
if(a == "x"):
    for i in range(1, n + 1):
        print(" " * (n - i), end="")
        for j in range(1, i + 1):
            print("*", end="")
        for m in range(1, i):
            print("*", end="")
        print()
    for i in range(n, 0, -1):
        print(" " * (n - i), end="")
        for j in range(i, 0, -1):
            print("*", end="")
        for m in range(i - 1, 0, -1):
            print("*", end="")
        print()
if(a == "y"):
    for i in range(1, n + 1):
        print(" " * (n - i), end="")
        for j in range(1, i + 1):
            print("*", end="")
        for m in range(1, i):
            print("*", end="")
        print(" " * ((n - i) * 2), end="")
        for h in range(1, i + 1):
            print("*", end="")
        for l in range(1, i):
            print("*", end="")
        print()