点个赞吧求求了!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

#include<iostream> using namespace std; int main(){ char a; int b,c=0,d; cin>>b; for(int i=1;i<=b;i++){ cin>>a; d=a; if(d>=97&&d<=122){ d=d-96; } else{ d=0-d; } c=c+d; } cout<<c; return 0; }