#include<bits/stdc++.h>
using namespace std;
int hh[1000000]; 
int s1,s2,s3,maxx,sc;
int main()
{ freopen("bones.in","r",stdin);
  freopen("bones.out","w",stdout);
  scanf("%d%d%d",&s1,&s2,&s3);
  for (int i=1;i<=s1;i++)
   for(int j=1;j<=s2;j++)
    for (int k=1;k<=s3;k++)
  { long long z=i+j+k;
    hh[z]++;
  }
  for  (long long i=1;i<=1000000;i++)
  if (hh[i]>maxx) {maxx=hh[i];sc=i;}
  printf("%d",sc);
  return 0; 
}