#include <bits/stdc++.h>
using namespace std;

int t;

char buf[100002];

vector<pair<int, int> > v;

void reset(vector<pair<int, int> > &r){
	vector<pair<int, int> > f;
	int pr = r[0].first;
	int cnt = 0;
	for (int i = 0; i < r.size(); i++){
		if (pr == r[i].first){
			cnt += r[i].second;
		}
		else{
			f.push_back(make_pair(pr, cnt));
			pr = r[i].first;
			cnt = r[i].second;
		}
	}
	f.push_back(make_pair(pr, cnt));
	r = f;
}
int main(){
	cin >> t;
	while (t--){
		scanf("%s", buf);
		v.clear();
		int siz = strlen(buf);
		for (int i = 0; i < siz; i++){
			v.push_back(make_pair(buf[i] - '0', 1));
		}
		reset(v);
		while (v.size()>1 || (v.size() == 1 && v[0].second>1)){
			vector<pair<int, int> > tmp;
			int pr = -1;
			for (int i = 0; i < v.size(); i++){
				if (v[i].second > 1){
					int K = v[i].first + v[i].first;
					if (K >= 10){
						K %= 10;
						K++;
					}
					tmp.push_back(make_pair(K, v[i].second - 1));
				}
				if (i + 1 < v.size()){
					int F = v[i].first + v[i + 1].first;
					if (F >= 10){
						F %= 10;
						F++;
					}
					tmp.push_back(make_pair(F, 1));
				}
			}
			v = tmp;
			reset(v);
			tmp.clear();
			bool ng = false;
			int maxxx = 0;
			for (int i = 0; i < v.size(); i++){
				if (v[i].first == 9){
					maxxx = min(maxxx, v[i].second);
				}
				if (v[i].first != 9&&v[i].second!=1){
					ng = true;
					break;
				}
			}
			for (int i = 0; i < v.size(); i++){
				if (v[i].first == 9){
					v[i].second -= maxxx;
				}
			}
			if (ng == false){
				break;
			}
		}
		printf("%d\n", v[0].first);
	}
	return 0;
}