3
1
ME3021112225321 00:00:00 23:59:59
2
EE301218 08:05:35 20:56:35
MA301134 12:35:45 21:40:42
3
CS301111 15:30:28 17:00:10
SC3021234 08:00:00 11:25:25
CS301133 21:45:00 21:58:40

ME3021112225321 ME3021112225321
EE301218 MA301134
SC3021234 CS301133

#include<stdio.h>
#include<string.h>
struct st
{
    char zhengjian[20];
    char kaishi[10];
    char jieshu[10];
}data[100];
int main()
{
    int T,n,i,j;
    struct st data[100],t;
    scanf("%d",&T);
    while(T--)
    {
        scanf("%d",&n);
        for(i=0;i<n;i++)
        {
            scanf("%s %s %s",data[i].zhengjian,data[i].kaishi,data[i].jieshu);
        }
        for(i=0;i<n;i++)
        {
            for(j=i+1;j<n;j++)
            if(strcmp(data[i].kaishi,data[j].kaishi)>0)
            {
                t=data[i];
                data[i]=data[j];
                data[j]=t;
            }
        }
        printf("%s ",data[0].zhengjian);
        for(i=0;i<n;i++)
        {
            for(j=i+1;j<n;j++)
            if(strcmp(data[i].jieshu,data[j].jieshu)<0)
            {
                t=data[i];
                data[i]=data[j];
                data[j]=t;
            }
        }
        printf("%s\n",data[0].zhengjian);
    }
    return 0;
}