C++ :

#include<iostream>
#include<string>
#include<cctype>
using namespace std;
int Let=0,Dig=0,Spa=0,Oth=0;
void solve(string s)
{
	int len=s.size();
	for (int i=0; i<len; i++)
		if (isalpha(s[i])) Let++;
		else if (isdigit(s[i])) Dig++;
		else if (s[i]==' ') Spa++;
		else Oth++;
}
int main()
{
	string s;
	getline(cin,s);
	solve(s);
	cout<<Let<<" "<<Dig<<" "<<Spa<<" "<<Oth<<" "<<endl;
	return 0;
}