space = ' ' backslash = '\\' bar = '|' dash = '-' forwardslash = '/' def fireworks(n): k = (n - 1) // 2 print(backslash + k * space + bar + k * space + forwardslash) for i in range(k): outer_space = (i + 1) * space inner_space = (k - i - 1) * space print(outer_space + backslash + inner_space + bar + inner_space + forwardslash) print(dash * n) for i in range(k): outer_space = (k - i - 1) * space inner_space = (i + 1) * space print(outer_space + forwardslash + inner_space + bar + inner_space + backslash) print(dash * n) fireworks(99)