Keyboard

Ooha designed her own keyboard to make her task easier, which contains alphabets ‘a’ to ‘t’ and digits ‘0’ to ‘9’ as shown below. - a b c d e f g h i j - k l m n o p q r s t - 0 1 2 3 4 5 6 7 8 9 Your task is to find energy required to type the given string $s$. Energy for entering each character is equal to product of row number * column number. Copy the buggy code from [here!](https://pastebin