Solution-CF731-D2-A

#include <iostream>
#include <cstdlib>
 
using namespace std;
 
int main()
{
    string passedName;
    char startPos='a';
    int numbOfRotations=0;
    char previousLetter=startPos;
    cin>>passedName;
    for(int index1=0;index1<100 && passedName[index1]!='\0';index1++)
    {
        char letterInName=passedName[index1];
        int clockWise=abs((int)letterInName-(int)previousLetter);
        int antiClockWise=(26-abs((int)letterInName-(int)previousLetter));
        numbOfRotations+=min(clockWise,antiClockWise);
        previousLetter=letterInName;
    }
    cout<<numbOfRotations<<endl;
    return 0;
}