10. Letters Change Numbers (Text Processing)

function solve(string){
    const posInAlphabet = (letter)=>{
        let currentLetter = letter.toLowerCase();
        return currentLetter.charCodeAt()- 96;
    }

    let arr = string.split(' ');

let result = 0;
    for (const each of arr) {
        if(each !== ""){
            let before = each.substring(0,1);

            let after = each.substring(each.length-1);

            let myNum = each.replace(before,"");
             myNum = myNum.replace(after,"");
             myNum = Number(myNum);
            let resulted = 0;

            if(before === before.toUpperCase()){
                resulted += myNum / posInAlphabet(before);
            }else{
                resulted += myNum * posInAlphabet(before);
            }

            if(after === after.toUpperCase()){
                resulted -= posInAlphabet(after);
            }else{
                resulted += posInAlphabet(after);
            }


            result+=resulted;
        }

    }



console.log(result.toFixed(2));

}