C :

#include<stdio.h>
#include<string.h>
int main()
{
	int a=0,b=0,c=0,d=0,i,l;
	char x[1001];
	gets(x);
	l=strlen(x);
	for(i=0;i<l;i++)
	{
		if(x[i]>='A'&&x[i]<='Z')	a++;
		else	if(x[i]>='a'&&x[i]<='z')	b++;
		else	if(x[i]>='0'&&x[i]<='9')	c++;
		else	if(x[i]>=' ')	d++;
	}
	printf("%d %d %d %d",a,b,c,d);
}