#include <iostream>
#include <fstream>
#include <cstring>

#define MAX 100000000
using namespace std;

char c[MAX];


int main()
{
    ifstream in("text.in");
    ofstream out("text.out");

   in.getline(c,MAX);

   unsigned long sum = 0,contor = 0;


   char sep[100]=" ,._`-!?{)*123456780&^'%$#~=+|(@!}/[]\ ";

   char *p;
   p= strtok(c,sep);

     while(p!= NULL)
     {
         contor++;
         sum +=strlen(p);
         cout<<p<<endl;

         p=strtok(NULL,sep);

     }


//cout<<sum<<endl<<contor<<endl;
out<<sum/contor;





    return 0;
}