|
#include <iostream>
|
|
using namespace std;
|
|
int main()
|
|
{
|
|
int m,n,l;
|
|
cin>>m>>n>>l;
|
|
int dui=m/2,all=m+n;
|
|
if(n<dui){
|
|
dui=n;
|
|
}
|
|
all=all-dui*3;
|
|
if(l<=all){
|
|
cout<<dui;
|
|
return 0;
|
|
}
|
|
l-=all;
|
|
if(l%3==0){
|
|
cout<<dui-l/3;
|
|
return 0;
|
|
}else{
|
|
cout<<dui-l/3-1;
|
|
return 0;
|
|
}
|
|
}
|