#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <cstdio>
using namespace std;
#define F first
#define S second
typedef long long ll;
typedef pair<ll,ll> P;
int main(void){
    int a,b,c;
    cin>>a>>b>>c;
    cout<<a+b+c<<endl;
}

