#include <iostream>
#include <sstream>
#include <iomanip>
#include <cstdio>
#include <string>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <utility>
#include <locale>
#include <algorithm>
#include <vector>
#include <queue>
#include <stack>
#include <list>
#include <set>
#include <climits>
#include <cfloat>
#include <map>
#include <functional>
using namespace std;
const double PI=acos(-1);
int main() // 제3회 kriiicon
{
long long a, b, c;
scanf("%lld %lld %lld", &a, &b, &c);
printf("%lld\n", a+b+c);
return 0;
}
