#include<fstream.h>
#include<iostream.h>
#include<string.h>

void main()
{
	char sir[100],*p;
	int litere=0, cuvinte=0,i=0; 
	float raport;
ifstream f("text.in");
ofstream g("text.out");
f.getline(sir,100); 
for(i=1;i<=strlen(sir);i++)
 {if(sir[i]>='a'&&sir[i]<='z'&&sir[i]>='A'&&sir[i]<='Z'&&sir[i]!='!'&&sir[i]!=','&&sir[i]!='.'&&sir[i]!='?'&&sir[i]!=' ') 
litere++;}
p=strtok(sir," ,.!?-");
while(p)
{ 
cuvinte=cuvinte+1;
litere=litere+strlen(p);
p=strtok(NULL,"- ,!?.");
}
litere=litere;
raport=litere/cuvinte;
g<<raport;
}