#include<stdio.h>
void main()
{
	char c;
	int letters=0,space=0,digit=0,others=0;
	printf("請輸入一些字符：\n");
	while((c=getchar())!='\n')
	{
		if(c>='a'&&c<='z'||c>='A'&&c<='Z')
			letters++;
		else if(c==' ')
			space++;
		else if(c>='0'&&c<='9')
			digit++;
		else
			others++;
	}
	printf("\n其中包含:\n");
	printf(" 字符：%d \n 空格：%d \n 數字：%d \n 其他：%d\n",letters,space,digit,others);
}