#include <bits/stdc++.h> #define MAX 81 using namespace std; int main(){ int data[3]; while(cin>>data[0]>>data[1]>>data[2]){ if(!data[0] && !data[1] && !data[2]) return 0; sort(data,data+3); int min = data[0],mid = data[1],max = data[2]; cout<<min+mid-max<<endl; } }