#include "testlib.h"
#include <vector>
#include <iostream>
#include <cassert>

using i64 = long long;

const int MIN_T = 1;
const int MAX_T = 100;

const int MIN_N = 1;
const int MAX_N = 200000;

const int MIN_M = 1;
const int MAX_M = 200000;

const int MIN_K = 1;
const int MAX_K = 1000000000;

int main(int argc, char** argv) {
    registerValidation(argc, argv);

    const int T = inf.readInt(MIN_T, MAX_T, "T");
    inf.readEoln();
    int sum_N = 0;
    int sum_M = 0;
    for (int i = 0; i < T; ++i) {
        const int N = inf.readInt(MIN_N, MAX_N, "N");
        inf.readSpace();
        const int M = inf.readInt(MIN_M, MAX_M, "M");
        inf.readSpace();
        const int K = inf.readInt(MIN_K, MAX_K, "K");
        inf.readEoln();
        sum_N += N;
        sum_M += M;
        assert(sum_N <= MAX_N);
        assert(sum_M <= MAX_M);
        assert((i64) K * K <= 1000000000000000000LL / M);
        for (int j = 0; j < M; ++j) {
            inf.readInt(1, N, "x");
            inf.readSpace();
            const int y = inf.readInt(1, MAX_K, "y");
            inf.readEoln();
            assert((i64) y * y <= 1000000000000000000LL / M);
        }
    }
    inf.readEof();
    std::cout << "validator" << std::endl;
    return 0;
}