#include <iostream>
#include <vector>
#define repeat(i,n) for (int i = 0; (i) < (n); ++(i))
#define repeat_from(i,m,n) for (int i = (m); (i) < (n); ++(i))
using namespace std;
template <class T> void setmax(T & a, T const & b) { if (a < b) a = b; }
template <typename T, typename X> auto vectors(T a, X x) { return vector<T>(x, a); }
template <typename T, typename X, typename Y, typename... Zs> auto vectors(T a, X x, Y y, Zs... zs) { auto cont = vectors(a, y, zs...); return vector<decltype(cont)>(x, cont); }
int main() {
    int t; cin >> t;
    vector<string> s(t); repeat (i,t) cin >> s[i];
    int n_max = 0; repeat (i,t) setmax<int>(n_max, s[i].length());
    vector<vector<int> > choose = vectors(int(), n_max+1, n_max+1);
    choose[1][0] = 1;
    repeat_from (n,1,n_max) {
        repeat (r,n+1+1) {
            choose[n+1][r] = (choose[n][r] + (r-1 >= 0 ? choose[n][r-1] : 0)) % 9;
        }
    }
    repeat (i,t) {
        int n = s[i].length();
        int acc = 0;
        repeat (j,n) acc += (s[i][j] - '0') * choose[n][j];
        while (acc >= 10) acc = acc / 10 + acc % 10;
        cout << acc << endl;
    }
    return 0;
}