func_code_string: #include <bits/stdc++.h>   using namespace std;   #define pb push_back   #define ll long long   #define ff first   #define ss second      void solve()   {       int n;      cin>>n;         int sum=0;      int cnt=1;         while(sum<n)      {        sum+=cnt;        cnt+=1;      }      if(sum-1==n)       cout<<cnt;     else       cout<<cnt-1;     cout<<  n ;           }            int main()   {       ios_base::sync_with_stdio(false);       cin.tie(NULL);       #ifndef ONLINE_JUDGE          freopen( input.txt , r ,stdin);          freopen( output.txt , w ,stdout);        #endif       int q=1;       cin>>q;          while(q--)     {          solve();         }         return 0;               }