#include <bits/stdc++.h>
using namespace std;
int main()
{
int n , a[10000] , t;
cin>>t;
while(t--)
{
cin>>n;
for ( int i=0 ; i<n;i++)
{
cin>>a[i];
}
for ( int i=0 ; i<n;i++)
{
if ( a[i] > a[i+1] )
cout<<a[i]<<" ";
}
cout<<endl;
}
return 0;
}
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