#include<stdio.h>
#include<string.h>
#include <iostream>
using namespace std;
const int N = 1000005;
int a[N];
int main()
{
    int tcase;
    scanf("%d",&tcase);
    while(tcase--){
        int n;
        scanf("%d",&n);
        for(int i=1;i<=n;i++){
            scanf("%d",&a[i]);
        }
        bool flag = false;
        for(int i=2;i<=n;i++){
            if(a[i]<a[i-1]){
                flag = true;
                break;
            }
            a[i]-=a[i-1];
            a[i-1] = 0;
            /*for(int j=1;j<=n;j++){
                printf("%d ",a[j]);
            }
            printf("\n");*/
        }
        if(a[n]!=0) flag = true;
        if(flag) printf("I will never go out T_T\n");
        else printf("yeah~ I escaped ^_^\n");
    }

    return 0;
}