Fun : !!! > a , b , c , d ... < !!!

A fun fact about letters 'a', 'ࢧ, 'c' & 'd 'ம.. REALLY  AWESOME ༯font> Do you know ....?  ༯font> Letters 'a', 'b', 'c' & 'd' do not appear anywhere in the spellings of 1༯font>to 99༯font> (Letter 'd' comes for the first time in Hundred)༯font> Letters 'a', 'b' & 'c' do not appear anywhere in the spellings of 1 to༯font>999༯font> (Letter 'a' comes for the first time in Thousand)༯font> Letters 'b' & 'c' do not appear anywhere in the spellings of 1 to༯font>999,999,999༯font> (Letter 'b' comes for the first time in Billion)༯font> And  ༯font> Letter 'c' does not appear anywhere in the spellings of entire༯font>English Counting

༯font>

Thanks To Prashant Athale