Problem1096--【入门】打印字母塔1096: 【入门】打印字母塔
Time Limit: 1.000 Sec Memory Limit: 16 MB
Submit: 5 Solved: 8
[Submit] [Status] [Web Board] [Creator:][下载测试数据] Description
输入行数N,打印图形.
Input
输入只有一行，包括1个整数。(N<=15)
Output
输出有N行.
Sample Input
3
Sample Output
A
BAB
CBABC
Source/Category
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