#include <stdio.h>
int nrcuv, nrlit, div;
char citit;
bool cuvant;
FILE *in, *out;
int main(void)
{
    in=fopen("text.in","rt");
    out=fopen("text.out","wt");

    //while(citit!=10)
    while(!feof(in))
    {
        fscanf(in, "%c",&citit);
		if(feof(in))
			break;
        if(citit>='a' && citit<='z' || citit>='A' && citit<='Z')
        {
            cuvant=true;
            nrlit++;
        }
        else
        {
            if(cuvant)
				nrcuv++;
            cuvant=false;
        }
    }
    div=nrlit/nrcuv;
    fprintf(out, "%d",div);
    fclose(in);
    fclose(out);
    return 0;
}