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#include <iostream>
#include <fstream>
using namespace std;
int isLetter(char letter){
if( (letter >= 'A' && letter <='Z') || ( letter >= 'a' && letter <= 'z' ) ){
return 1;
}
else return 0;
}
int main(){
ifstream f("text.in");
ofstream g("text.out");
int size=0;
int word=0;
int k=0;
char c;
while (f.get(c)){
if ( isLetter(c) ){
size++;
if (k==0)
word++;
k=1;
}
else{
k=0;
}
}
int sol=size/word;
g<<sol;
f.close();
g.close();
return 0;
}