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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
в случае нечетного индекса вернуть алфавитную позицию символа, а здесь просто индекс + 1;
if (i%2==1) {
sum+=i+1 }
The alphabet is not used in the solution?
sum+=i+1
is this the alphabetical position of the character?