#include <iostream>
#include<cmath>
using namespace std;

int getMin(int x,int y){
if(x<y)return x;
else return y;
}
int getMax(int x,int y){
if(x<y)return y;
else return x;
}

int main()
{

    char CurrentChar ='a';

    string s;
    cin>>s;
   int counter=0;
    for(int i=0;i<s.length();i++){

        counter+=getMin((int)(abs(((int)s[i]-97)-((int)CurrentChar-97))),int(abs(26-getMax(((int)CurrentChar-97),((int)s[i]-97)))+getMin(((int)CurrentChar-97),((int)s[i]-97))));
        CurrentChar=s[i];
cout<<counter<<endl;
    }
    cout<<counter;
    return 0;
}