#include <bits/stdc++.h>
using namespace std;
const int MAXSUM = 1000;
const int INF = -1e9;
int val[] = {100,50,20,10,5,1};
int main(){
int x1,x2,x3;
cin>>x1>>x2>>x3;
// net: >0应该收钱,<0应该出钱
int netA = -x1 + x3;
int netB = x1 - x2;
int netC = x2 - x3;
}