#include "bits/stdc++.h"
using namespace std;
#define fastcin {\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
}
#define rep(i, a, b) for(int i = a; i < b; i++)
#define rrep(i, a, b) for(int i = a; i >= b; i--)
#define fore(i, a) for(auto &i:a)
#define print(x) cout << x << "\n"
#define SORT(a, n) sort(a, a+n);
#define REVERSE(a,n) reverse(a,a+n);
#define VSORT(v) sort(v.begin(), v.end());
#define VREVERSE(v) reverse(v.begin(), v.end());
#define MOD 1000000007
#define yes "YES"
#define no "NO"
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;

long long combination(int n,int r) { 
    long long i = 1; 
    int k = r > n - r ? n - r : r, count; 
    if(k < 0) return 0; 
    std::list<int> list; 
    std::list<int>::iterator it; 
    for(count = 2; count <= k; ++count) list.push_back(count); 
    for(count = n; count > n - k; --count) 
    { 
        i *= count; 
        for(it = list.begin(); it != list.end(); ) 
        { 
            if(!(i % *it)) 
            { 
                i /= *it; 
                it = list.erase(it); 
            } 
            else ++it; 
        } 
    } 
    return i; 
} 

int main() {
    fastcin;
    int t;
    ll sum, ans;
    cin >> t;
    string s;
    rep(i, 0, t) {
        cin >> s;
        int len = s.size();
        sum = 0;
        rep(j, 0, len) {
            int c = combination(len-1, j);
            sum += (s[j]-'0') * c;
        }
        while(sum/10!=0) {
            sum = sum%10 + sum/10;
        }
        print(sum);
    }
    return 0;
}