1 /*

 2  *   > File Name: HDU2091.cpp

 3  *   > Author: Ddlm2wxm

 4  *   > Mail: Ddlm2wxm@163.com

 5  *   > Created Time: 2017/3/8 13:40:14

 6   *****************************************/

 7

 8 #include <iostream>

 9 #include <algorithm>

10 #include <string>

11 #include <cstring>

12 #include <cstdio>

13 using namespace std;

14

15 int main() {

16     int n;

17     bool flag = false;

18     char a;

19     while (cin >> a && a != '@' && cin >> n) {

20         if(flag) cout << endl;

21         flag = true;    // 第一次不输出换行，以后的都在输出三角形之前输出换行.

22         for (int i = 0; i < n-1; ++i) {

23             for (int j = n-i-1; j > 0; --j) {

24                 cout << " ";

25             }

26             for (int j = 0; j < 2*i+1; ++j) {

27                 if ((j == 0 || j == 2*i) && i != n-1)

28                     cout << a;

29                 else cout << " ";

30             }

31             cout << endl;

32         }

33         for (int j = 0; j < 2*n-1; ++j)

34             cout << a;

35         cout << endl;

36     }

37     return 0;

38 }