#include <algorithm>
#include <bitset>
#include <cmath>
#include <vector>
#include "validate.h"
using namespace std;

// Reads the input file and returns a bitset `visited` such
// that `visited[i]` is true iff the given route traverses the
// longitude band between `i-180` degrees and `i-179` degrees.
bitset<360> simulate_route() {
	int n;
	judge_in >> n;
	
	vector<int> lat(n+1), lon(n+1);
	for (int i = 0; i < n; i++) {
		judge_in >> lat[i] >> lon[i];
	}
	lat[n] = lat[0], lon[n] = lon[0];

	bitset<360> visited;

	// Marks off the band with longitude `lon1` as the western bound
	// and longitude `lon2` as the eastern bound as visited.
	auto travel = [&](int lon1, int lon2) {
		while (lon1 != lon2) {
			visited[lon1+180] = true;
			if (++lon1 == 180) lon1 = -180;
		}
	};

	for (int i = 0; i < n; i++) {
		int dist = (lon[i+1]-lon[i]+360) % 360; // change of longitude

		if (dist < 180) {
			travel(lon[i], lon[i+1]); // flying east
		} else if (dist > 180) {
			travel(lon[i+1], lon[i]); // flying west
		} else {
		 	visited.set(); // flying over one of the poles
		}
	}

	return visited;
}

int main(int argc, char **argv) {
	init_io(argc,argv);

	bitset<360> visited = simulate_route();

	string author_ans;
	if (!(author_out >> author_ans)) {
		wrong_answer("Wrong answer: expected 'yes' or 'no'.\n");
	}

	transform(begin(author_ans), end(author_ans), begin(author_ans),
		[](char c) { return tolower(c); });

	if (author_ans == "yes") {
		if (!visited.all()) {
			wrong_answer("Wrong answer: expected 'no', got 'yes'.\n");
		}
	} else if (author_ans == "no") {
		if (visited.all()) {
			wrong_answer("Wrong answer: expected 'yes', got 'no'.\n");
		}

		int lon;
        char separator;
        string dec;
        author_out >> ws;
        bool has_minus = author_out.peek() == '-';
		if (!(author_out >> lon >> separator >> dec)) {
			wrong_answer("Wrong answer: expected a real number written with decimal part.\n");
		}
        if(!(dec == "0" || dec == "5") || separator != '.') {
            wrong_answer("Wrong answer: expected a . as a decimal separator, "
                    "followed by a single 0 or a single 5.");
        }
		if (lon < -180 || lon >= 180) {
			wrong_answer("Wrong answer: longitude out of range, must be in [-180,180).\n");
		}
        if (dec == "0" && (visited[180 + lon] or visited[(179 + lon + 360) % 360])) {
			wrong_answer("Wrong answer: the route passes through the given meridian.\n");
        }
        if (dec == "5" && ((!has_minus && visited[180 + lon]) || 
                (has_minus && visited[(179 + lon + 360) % 360]))) {
			wrong_answer("Wrong answer: the route passes through the given meridian.\n");
        }
	} else {
		wrong_answer("Wrong answer: expected 'yes' or 'no'.\n");
	}

	string junk;
	if (author_out >> junk) {
		wrong_answer("Wrong answer: found trailing output.\n");
	}

	accept();
}