#include <fstream>
#include <iostream>
#include <vector>

struct range
{
	long int min;
	long int max;
};

int main()
{
	std::ifstream file("input.txt");

	std::vector<range> fresh_ranges;

	std::string line;
	while (getline(file, line)) {
		if (line == "") break;

		range range;
		sscanf(line.c_str(), "%ld-%ld", &range.min, &range.max);

		fresh_ranges.push_back(range);
	}

	int fresh_amount = 0;

	while (getline(file, line)) {
		long int id = std::stol(line);
		bool is_fresh = false;

		for (range range : fresh_ranges) {
			if (id >= range.min && id <= range.max) {
				is_fresh = true;
				break;
			}
		}

		if (is_fresh) fresh_amount++;
	}

	std::cout << fresh_amount << std::endl;
}