#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b,c;
    cin>>a>>b>>c;
    if(c==1){
        cout<<abs(a-c)+c<<endl;
    }
    else if(abs(a-c)<=abs(b-c)){
        cout<<c+abs(a-c)<<endl;
    }
    else{
        cout<<a+abs(a-b)+abs(b-c)<<endl;
    }
}