Staircase

Going downstairs, while singing the alphabet song. Some vb practice to us all. Would it be much easier to make it go from left to right instead?

Input

                         A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Output

                         A
                        BB
                       CCC
                      DDDD
                     EEEEE
                    FFFFFF
                   GGGGGGG
                  HHHHHHHH
                 IIIIIIIII
                JJJJJJJJJJ
               KKKKKKKKKKK
              LLLLLLLLLLLL
             MMMMMMMMMMMMM
            NNNNNNNNNNNNNN
           OOOOOOOOOOOOOOO
          PPPPPPPPPPPPPPPP
         QQQQQQQQQQQQQQQQQ
        RRRRRRRRRRRRRRRRRR
       SSSSSSSSSSSSSSSSSSS
      TTTTTTTTTTTTTTTTTTTT
     UUUUUUUUUUUUUUUUUUUUU
    VVVVVVVVVVVVVVVVVVVVVV
   WWWWWWWWWWWWWWWWWWWWWWW
  XXXXXXXXXXXXXXXXXXXXXXXX
 YYYYYYYYYYYYYYYYYYYYYYYYY
ZZZZZZZZZZZZZZZZZZZZZZZZZZ