#include <bits/stdc++.h>

typedef long long ll;
#define ALL(a) a, a+sizeof(a)/sizeof(a[0])
#define all(a) a.begin(),a.end()
#define MOD 1000000007
using namespace std;
ll gcd(ll n, ll m) {
	if (m == 0) return n;
	return gcd(m, n % m);
}
ll lcm(ll n, ll m) {return m / gcd(n, m) * n;}

int main(void) {
	ll p, c, m;
	cin >> p >> m >> c;
	cout << p + m + c << endl;
	return 0;
}
