#include <bits/stdc++.h>

using namespace std;
typedef long long int64;

const int mod = 9;

inline int64 modPow(int64 x, int64 n)
{
  if(n == 0) return (1);
  int64 ret = modPow(x, n / 2);
  (ret *= ret) %= mod;
  if(n & 1) (ret *= x) %= mod;
  return (ret);
}

inline int64 modInv(int64 a)
{
  return (modPow(a, mod - 2));
}

inline int64 modCombination(int p, int q)
{
  static int64 fact[202020], rfact[202020];
  if(fact[0] == 0) {
    fact[0] = rfact[0] = 1;
    for(int i = 1; i < 102020; i++) {
      fact[i] = fact[i - 1] * i % mod;
      rfact[i] = modInv(fact[i]);
    }
  }
  if(q < 0 || p < q) return (0);
  return (fact[p] * rfact[q] % mod * rfact[p - q] % mod);
}

int get(char a, char b)
{
  return ((a + b) / 10 + (a + b) % 10);
}

int main()
{
  int T;
  cin >> T;
  while(T--) {
    string S;
    cin >> S;

    bool f = false;
    for(int j = 0; j < S.size(); j++) {
      if(S[j] != '0') break;
      if(j + 1 == S.size()) {
        cout << 0 << endl;
        f = true;
      }
    }
    if(!f) {
      int ans = 0;
      for(int j = 0; j < S.size(); j++) {
        ans = (int) ((ans + (S[j] - '0') * modCombination(S.size() - 1, j)) % 9);
      }
      cout << (ans == 0 ? 9 : ans) << endl;
    }
  }

}