#include <stdio.h>
#include <cmath>
#include <algorithm>
#include <stack>
#include <queue>
#include <vector>
typedef long long int ll;
#define BIG_NUM 2000000000
#define MOD 1000000007
using namespace std;

int main(){

	int p,m,c;
	scanf("%d %d %d",&p,&m,&c);

	printf("%d\n",p+m+c);

	return 0;
}