P2911 [USACO08OCT] Bovine Bones G

#include<iostream>
using namespace std;
int a,b,c,d,many[88],first;
int main(){
	cin>>a;
    cin>>b;
    cin>>c;
    for(int i=1;i<=a;i++){
    	for(int j=1;j<=b;j++){
        	for(int k=1;k<=c;k++){
            	d=i+j+k;
                many[d]+=1;
            }
        }
    }
	for(int i=0;i<88;i++){
    	if(many[i]>first){
        	first=i;
        }
    }
    cout<<first;
	return 0;
}