#include<cstdio>#include<algorithm>using namespace std;inline void in(int &x){    char c;x=0;    do c=getchar();    while (c<‘0‘||c>‘9‘);    while (c>=‘0‘&&c<=‘9‘)x=x*10+c-48,c=getchar();}void work(){    }inline int low_bound(int a[],int len,int x) {    int l = 0, r = len-1, mid;    while (l<r) {        mid = (l+r)>>1;        if (a[mid]<x)l = mid+1;        else r = mid;    }    return l;}inline int up_bound(int a[],int len,int x) {    int l = 0, r = len-1, mid;    while (l<r) {        mid = (l+r)>>1;        if (a[mid]<=x)l = mid+1;        else r = mid;    }    return l;}int main(){    int t;scanf("%d",&t);    while(t--){        work();    }    return 0;}