#include <cstdio>
#include <cstdlib>
#include <ctime>

const unsigned long long N = 100001;

int get_rand() {
  unsigned long long r = rand() * rand() + rand();
  return (int) (r % N);
}

int main(int argc, char **argv) {
  int n, k, c = atoi(argv[1]);
  srand((int) time(0));
  for (int i = 0; i < c; i++) {
    n = get_rand();
    k = get_rand();
    printf("%d %d\n", n, k);
  }
  return 0;
}