哈哈哈

n = int(input()) for i in range(1, n + 1): print(' ' * (n - i), end='') print('', end='') if i > 1: print(' ' * (2 * i - 3), end='') print('', end='') print() for i in range(n - 1, 0, -1): print(' ' * (n - i), end='') print('', end='') if i > 1: print(' ' * (2 * i - 3), end='') print('', end='') print()

#include<bits/stdc++.h> using namespace std; int a; int main(){ }