Problem R: 大写字母组成的等腰三角形

Problem R: 大写字母组成的等腰三角形

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 101  Solved: 76
[Submit] [Status] [Web Board] [Creator:]

Description

输入正整数N(1≤N≤26),输出大写字母组成的等腰三角形(N行)

  A
 BBB
CCCCC

Sample Input Copy

5

Sample Output Copy

    A
   BBB
  CCCCC
 DDDDDDD
EEEEEEEEE