#include <stdio.h>
#include <string.h>
int alpha_num(const char *str){
static int i=0;
static int counter=0;

if(i==strlen(str))return 0;
if(str[i]>='A' && str[i]<='Z' || str[i]>='a' && str[i]>='z'){
    counter++;
    i++;
    return alpha_num(str);
}
else{
    counter++;
     return alpha_num(str);}

}
int main(){

char word="myWord67this";
printf("%d",alpha_num(word));
}