#include <bits/stdc++.h> using namespace std; #define int long long using ll = long long; ll llmax(ll a,ll b){return a<b ? b:a;} signed main(void){ //int n; cin>>n; char x = '"'; string str; getline(cin,str); string str2; if(!getline(cin,str2)) {cout<<x<<"assert"<<x<<endl; return 0;} //cout<<str2<<endl; string str3; if(!getline(cin,str3)) {cout<<x<<"assert"<<x<<endl; return 0;} //cout<<str3<<endl; string str4; if(!getline(cin,str4)) {cout<<x<<"assert"<<x<<endl; return 0;} //cout<<str4<<endl; int a = stoll(str2); int b = stoll(str3); int c = stoll(str4); //cout<<a<< b<<c<<endl; vector <int> ans; ans.push_back(a+b); ans.push_back(c+b); ans.push_back(a+c); sort(ans.begin(),ans.end()); ans.erase(unique(ans.begin(), ans.end()), ans.end()); cout<<ans[ans.size()-2]<<endl; }