Subject: Letter Theory...
Content: This is awesome - 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 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 billion)And Letter 'c' does not appear anywhere in the spellings of entire English Counting
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