#include<stdio.h>
void main(){
  int c, letter=0, num=0, blank=0, tab=0, enter=0, other=0 ,i=0, sum=0;
  printf("Please input a string:\n");
  while((c=getchar())!=EOF){
    sum++;
    if(c==' '){
      ++blank; //空格鍵的個數(shù)
    }
    else if(c=='\t'){
      ++tab;  //Tab鍵的個數(shù)
    }
    else if(c=='\n'){
      ++enter;  //回車鍵的個數(shù)
    }
    else if((c>='A' && c<='Z') || (c>='a' && c<='z')){
      ++letter;  //字母的個數(shù)
    }
    else if(c>='0' && c<='9'){
      ++num;   //數(shù)字的個數(shù)
    }
    else ++other;   //其他字符的個數(shù)
    i++;
  }
  printf("There are %d characters\n", sum);
  printf("blank=%d, Tab=%d, Enter=%d, letter=%d, number=%d ,other=%d\n",blank, tab, enter, letter, num, other);
}