#include<stdio.h>
#include<ctype.h>
#include<string.h>
#define N 1000
int main()
{
	char str[N];
	printf("input:");
	gets(str);
	char CopyStr[N];
	strcpy(CopyStr,str);
	printf("tokens:\n");
	char *tokens=strtok(CopyStr," ,.!?");
	while(tokens!=NULL)
	{
		printf("%s\n",tokens);
		tokens=strtok(NULL," ,?.!");
	}
	int i,BigAlpha[26]={0},SmallAlpha[26]={0};
	for(i=0;str[i]!='\0';i++)
	{
		if(isupper(str[i]))
			BigAlpha[str[i]-'A']++;
		if(islower(str[i]))
			SmallAlpha[str[i]-'a']++;
		else
			continue;
	}
	printf("Big Characters:\n");
	int b,counter=0;
	for(b=0;b<26;b++)
	{
		if(BigAlpha[b]>0)
		{
			printf("%c:%d ",b+'A',BigAlpha[b]);
			counter++;
			if(counter%5==0)
				puts("");
		}
	}
	puts("");
	printf("Small Characters:\n");
	int s,count=0;
	for(s=0;s<26;s++)
	{
		if(SmallAlpha[s]>0)
		{
			printf("%c:%d ",s+'a',SmallAlpha[s]);
			count++;
			if(count%5==0)
				puts("");
		}
	}
	puts("");
	system("pause");
	return 0;
}