#include <stdio.h>

int main()
{
    int space_count  = 0;
	int letter_count = 0;
	int number_count = 0;
	char ch = 0;
	while (ch != '\n')//读到语句末尾，退出循环
	{
		ch = getchar();
		if (ch == ' ')//为空格的时候计数+1
		{
			space_count++;
		}
		if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))//为字母的时候计数+1
		{
			letter_count++;
		}
		if (ch >= '0' && ch <= '9')//为数字的时候计数+1
		{
			number_count++;
		}
	}
	printf ("space_count :%d\n",space_count);
	printf ("letter_count:%d\n",letter_count);
	printf ("number_count:%d\n",number_count);
	
    return 0;
}