#include <bits/stdc++.h>
#define rep(i,n) for(ll (i)=0;(i)<(n);(i)++)
#define repi(i,a,b) for(ll (i)=(a);(i)<(b);(i)++)
#define SIZE_OF_ARRAY(array)    (sizeof(array)/sizeof(array[0]))
typedef long long ll;
using namespace std;
const ll mod = 1e9+7;

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int t;
  cin >> t;
  deque<ll> c;
  ll k;
  rep(i,t) {
    cin >> k ;
    string s = to_string(k);
    deque<ll> b;
    rep(i,s.size()){
      b.push_back(s[i]-'0');
    }
    while(b.size()>1){
    deque<ll> a;
    swap(a,b);
    repi(i,1,a.size()){
      a[i-1]+=a[i];
      a[i-1]=(a[i-1]/10)+(a[i-1]%10);
      while(a[i-1]>=10){
	a[i-1]=(a[i-1]/10)+(a[i-1]%10);
      }
	b.push_back(a[i-1]);
    }
  }
  c.push_back(b[0]);
  }
  rep(i,t){
  cout << c.front() << endl;
  c.pop_front();
  }
  
  return 0;
  }