#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)




typedef long long ll;
int sol(string S) {
    vector<int> v;
    for (char c : S) v.push_back(c - '0');
    int sm = 0;
    for (int i : v) sm += i;
    if (sm == 0) return 0;

    ll c = 1;
    ll res = 0;
    int n = v.size();
    rep(i, 0, n) {
        res += v[i] * c;
        res %= 9;
        c = c * (n - 1 - i) / (i + 1);
    }
    if (res == 0) res = 9;
    return res;
}
//-----------------------------------------------------------------------------------
int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    int T; cin >> T;
    rep(t, 0, T) {
        string s; cin >> s;
        printf("%d\n", sol(s));
    }
}