#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int,int>;
const int N = 1e6+10;
int a,b,c;
int f[N];
void solve(){
    while(cin>>a>>b>>c){
        if(a>b)swap(a,b);
        if(a>c)swap(a,c);
        if(b>c)swap(b,c);
        cout<<(a+b-c)<<"\n";
    }
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);  
    solve();
    return 0;
}