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

#define watch(x) cout << (#x) << " is " << (x) << '\n'
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(), (x).end()
#define X first
#define Y second
#define int ll

typedef long long ll;
typedef string str;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<bool> vb;
typedef vector< vector<int> > vvi;

const double PI = 3.14159265358979323846;
const int INF = 0x3f3f3f3f;

int count_num(int x) {
    int cnt = 0;
    while (x > 0) {
        cnt++;
        x /= 10;
    }
    return cnt;
}

void solve(){
    int a, b, c;
    cin >> a >> b >> c;
    int x = 1, y = 1;
    while (count_num(x) < a - c + 1) x *= 3;
    while (count_num(y) < b - c + 1) y *= 7;
    for (int i = 0; i < c - 1; i++) {
        x *= 10;
        y *= 10;
    }
    cout << x << ' ' << y << '\n';
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int t;
    cin >> t;
    while (t--) solve();
}