#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main() {
	ifstream in("input.txt");
	ofstream out("output.txt");
	string s;
	getline(in, s);
	out << "+7 ";
	int i = 2, count = 0;
	for (i; i < s.size(); i++) {
		if ((int)s[i] > 47 && (int)s[i] < 58)
			break;
	}
	for (i; i < s.size(); i++) {
		if ((int)s[i] > 47 && (int)s[i] < 58)
			out << s[i];
		else {
			i++;
			break;
		}
	}
	out << " ";
	for (int j = i; j < s.size(); j++) {
		if ((int)s[j] > 47 && (int)s[j] < 58) count++;
	}
	if (count > 4) {
		while (count > 4) {
			if ((int)s[i] > 47 && (int)s[i] < 58) {
				out << s[i];
				count--;
			}
			i++;
		}
		out << "-";
	}
	while (count > 2) {
		if ((int)s[i] > 47 && (int)s[i] < 58) {
			out << s[i];
			count--;
		}
		i++;
	}
	out << "-";
	while (count > 0) {
		if ((int)s[i] > 47 && (int)s[i] < 58) {
			out << s[i];
			count--;
		}
		i++;
	}
}