#include <fstream>
#include <cstring>
#include <stdio.h>
using namespace std;
ifstream cin("text.in");
ofstream cout("text.out");
int main()
{
    int i,nc=0,nt=0,aux=0;
    char a[100];
    char c[100]="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
    cin.getline(a,100);
    for(i=0; i < strlen(a); i++)
    {
       if(strchr(c,a[i]))
       {
           nt=nt+1;
       }
       if(strchr(c,a[i]) && aux==0)
       {
           nc=nc+1;
           aux=1;
       }
       if(!strchr(c,a[i]))
       {
           aux=0;
       }
    }
    cout<<nt/nc;
    cout<<endl<<"nt="<<nt;
    cout<<endl<<"nc="<<nc;
    return 0;
}