#include<bits/stdc++.h>
using namespace std;using ll=long long;
int rd(int x=0,char c=getchar()){int f=1;while(!isdigit(c))f=(c^'-'?1:-1),c=getchar();while(isdigit(c))x=x*10+(c^48),c=getchar();return x*f;}
const int N=102;
int n,op[N],ans[N],t[N],ls[N];

int ask(int x,int y){
	printf("at %02d:%02d check %d",x/60,x%60,y);
	cout<<endl;string s;cin>>s;
	return s=="awake";
}
int main(){
	n=rd();
	for(int i=1;i<=n;i++)op[i]=ask(0,i);
	int i=48,j=48;
	for(;j<=720;j+=--i){ 
		for(int k=1;k<=n;k++)if(!t[k])
			if(ask(j,k)!=op[k])t[k]=j-i+1+720,ls[k]=i;
//		cout<<j<<endl;
	}
	j-=i;i=720-j;j=720;
	for(int k=1;k<=n;k++)if(!t[k])
	t[k]=j-i+1+720,ls[k]=i;
	for(i=721;i<1440;i++){
		for(int k=1;k<=n;k++)if(!ans[k]&&t[k]<=i&&t[k]+ls[k]>i)if(ask(i,k)==op[k])ans[k]=i;
	}
	printf("answer\n");
	for(int i=1;i<=n;i++){
		if(op[i]==1)ans[i]=(ans[i]+720)%1440;
		printf("%02d:%02d\n",ans[i]/60,ans[i]%60);
	}
	cout<<endl;
	return 0;
}
//awake
//asleep