#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
using namespace std;
#define LIMIT 100
char buffer[LIMIT], * pos = buffer + LIMIT;

inline char getnext(){
  if (pos == buffer + LIMIT){
    pos = buffer;
    fread(buffer, 1, LIMIT, stdin);
  }
  return *pos++;
}

inline int getint(){
  int num = 0;
  char cc;
  while (!isdigit(cc = getnext()));
  do { num = num * 10 + cc - '0'; } while (isdigit(cc = getnext()));
  return num;
}


int main()
{int t=getint();
while(t--){
 int n=getint();
 if(n%2==0)printf("%d\n",n);
 else printf("%d\n",n-1);
}

}