This time, continuing my effort to make challenge on English language, the challenge is on Isogram. An Isogram is that word in English which doesn't repeat any alphabet. For example: "Botany" is an Isogram but "Britain" is not as "i" repeats.

Hence, this time, you need to make a formula which returns "Isogram" if the word is Isogram othewise returns "Not Isogram"

The solution to above challenge will be published after a month i.e. on 13-Sep-16.