0ms题解

#include<bits/stdc++.h>
int main(){
    std::string a;int re=0;
    std::cin>>a>>a;
    for(int i=0;i<a.size();i++){
        if(a[i]>='a' and a[i]<='z'){re+=int(a[i])-96;}
        else{re-=int(a[i]);}
    }
    std::cout<<re;
}