#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>

int main() {

    /* Enter your code here. Read input from STDIN. Print output to STDOUT */    
  int q,n,i,j,a[1000][1],t=0,l=1;
  scanf("%d",&q);
  for(i=1;i<=q;i++)
    {
     scanf("%d",&n);
    for(j=0;j<n;j++)
      {
      if((a[i][0]==l && a[i][1]==l) ||(a[i][0]==0 && a[i][1]==l)||(a[i][0]==l && a[i][1]==0)||(a[i][0]==0 && a[i][1]==0) )
        t++;     
    }
    if(t==n)
      printf("YES\n");
    else
      printf("NO\n");
    l++;
  }
    return 0;
}