Alpha Pattern

Print the following pattern for the given N number of rows.

Pattern for N = 3

 A
 BB
 CCC

Input format :

Integer N (Total no. of rows)

Output format :

Pattern in N lines

Constraints

0 <= N <= 26

Sample Input 1:

7

Sample Output 1:

A
BB
CCC
DDDD
EEEEE
FFFFFF
GGGGGGG

Sample Input 2:

6

Sample Output 2:

A
BB
CCC
DDDD
EEEEE
FFFFFF