#include<stdio.h>
#include<ctype.h>
int alpha_jdg_cnt(int c){if(c=='.'){return 0;}if(isalpha(c)){return 1;}return 2;}
int main(void){int f,count=0;char s[256];do{printf("Input charactor:");fgets(s,256,stdin);
f=alpha_jdg_cnt(s[0]);if(f==1){count++;printf("ALPHABET : %i\n",count);}}
while(f!=0);return 0;}