Interesting Observation !

Interesting Observation !
Letters 'A', 'B', 'C' & 'D'
Do Not Appear Anywhere in the
Spellings of 1 to 99
(Letter 'D' Comes For The First Time in Hundred)

Letters 'A', 'B' & 'C'
Do Not Appear Anywhere in the
Spellings of 1 to 999
(Letter 'A' Comes For The First Time in in Thousand)
.
Letters 'B' & 'C'
Do Not Appear Anywhere in the
Spellings of 1 to 999,999,999
(Letter 'B' Comes For The First Time in in Billion)
.
And
Letter 'C' Does Not Appear Anywhere in the
Spellings Of Entire English Counting.
"C" Appears First time in crore !!
.
.
Moral : Everyone Has To Wait For His Turn..
Think Of IT :)