#include <bits/stdc++.h>
using namespace std;
#define int long long

#define dbg(x...) \
do { \
std::cout << #x << " -> "; \
err(x); \
} while (0)

void err() {
	std::cout << std::endl;
}

template<class T, class... Ts>
void err(T arg, Ts &... args) {
	std::cout << fixed << setprecision(10) << arg << ' ';
	err(args...);
}

string digit;
void check_time(int x,int i) {
	int hour = x / 60;
	int minute = x % 60;
	char t1[2];
	char m1[2];
	t1[0] = digit[hour / 10];
	t1[1] = digit[hour % 10];
	m1[0] = digit[minute / 10];
	m1[1] = digit[minute % 10];
	cout << "at " << t1[0] << t1[1] << ":" << m1[0] << m1[1] << " " << "check " << i << '\n';
	fflush(stdout);
}

void print_time(int x) {
	int hour = x / 60;
	int minute = x % 60;
	char t1[2];
	char m1[2];
	t1[0] = digit[hour / 10];
	t1[1] = digit[hour % 10];
	m1[0] = digit[minute / 10];
	m1[1] = digit[minute % 10];
	cout << t1[0] << t1[1] << ":" << m1[0] << m1[1] << '\n';
	fflush(stdout);
}



void GENSHEN_START() {
	int n;cin >> n;
	vector <int> res(n + 5,-1);
	vector <int> pre(n + 5);
	vector <int> vis(n + 5);
	vector <int> pos(n + 5);
	vector <int> nxt(n + 5);
	vector <int> p[1500];
	string ans;
	for (int i = 1;i <= n;i++) {
		check_time(0,i);
		cin >> ans;
		if (ans == "awake") {
			pre[i] = 0;
		}
		else pre[i] = 1;
	}
	for (int cnt = 49;cnt >= 1;cnt--) {
		for (int i = 1;i <= n;i++) {
			if (!vis[i]) {
				if (pre[i] == 0) {
					pos[i] = nxt[i];
					nxt[i] += (cnt - 1);
					if (nxt[i] >= 720) {
						nxt[i] = 720;
						vis[i] = 1;
						for (int j = pos[i] + 1 + 720;j <= nxt[i] + 720;j++) p[j].push_back(i);
						break;
					}
					check_time(nxt[i],i);
					cin >> ans;
					if (ans == "asleep") {
						vis[i] = 1;
						for (int j = pos[i] + 1 + 720;j <= nxt[i] + 720;j++) p[j].push_back(i);
						continue;
					}
				}
				else {
					pos[i] = nxt[i];
					nxt[i] += (cnt - 1);
					if (nxt[i] >= 720) {
						nxt[i] = 720;
						vis[i] = 1;
						for (int j = pos[i] + 1 + 720;j <= nxt[i] + 720;j++) p[j].push_back(i);
						break;
					}
					check_time(nxt[i],i);
					cin >> ans;
					if (ans == "awake") {
						vis[i] = 1;
						for (int j = pos[i] + 1 + 720;j <= nxt[i] + 720;j++) p[j].push_back(i);
						continue;
					}
				}
			}
		}	
	}
	for (int i = 720;i <= 1439;i++) {
		for (auto j : p[i]) {
			if (res[j] == -1) {
				check_time(i,j);
				if (pre[j] == 0) {
					cin >> ans;
					if (ans == "awake") {
						res[j] = i - 720;
						continue;
					}
				}
				else {
					cin >> ans;
					if (ans == "asleep") {
						res[j] = i;
						continue;
					}
				}
			}
		}	
	}
	cout << "answer" << '\n';
	fflush(stdout);
	for (int i = 1;i <= n;i++) {
		if (res[i] == -1 && pre[i] == 0) res[i] = 720;
		if (res[i] == -1 && pre[i] == 1) res[i] = 0;
		print_time(res[i]);	
	}
	return ;
}

signed main()
{
	//ios::sync_with_stdio(false);cin.tie(nullptr);
	digit = "0123456789";
	int T = 1;
	//cin >> T;
	while (T--) GENSHEN_START();
	return 0;
}