include<stdio.h>

include<string.h>

include<stdlib.h>

include<math.h>

int main()
{
int a[26];
int b,c,d,sum=0;
char x[100002];
gets(x);
for(b=0;b<26;b++) a[b]=b+1; b=strlen(x); for(c=0;c<b;c++) { if(x[c]>=’a’&&x[c]<=’z’) d=x[c]-‘a’;
else d=x[c]-‘A’;
sum+=a[d];
}
printf(“%d”,sum);
}