#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define SIZE 1000000
#define VALUE 1000000
#define BUF_SIZE 4096
#define DIGIT_SIZE 10

char buf[BUF_SIZE], digits[DIGIT_SIZE];
int pos;

inline void putChar(FILE *f, char c) {
  buf[pos++] = c;
  if (pos == BUF_SIZE) {
    fwrite(buf, 1, BUF_SIZE, f);
    pos = 0;
  }
}

inline void writeInt(FILE *f, int x) {
  int n = 0, q;
  do {
    q = x / 10;
    digits[n++] = x - q * 10 + '0';
    x = q;
  } while (x);

  while (n--) {
    putChar(f, digits[n]);
  }
}

inline void flush(FILE *f) {
  fwrite(buf, 1, pos, f);
}

int main(void) {
  srand(time(NULL));
  FILE *f = fopen("parsare.out", "w");
  for (int i = 0; i < SIZE; i++) {
    int x = rand() % VALUE;
    writeInt(f, x);
    putChar(f, '\n');
  }
  flush(f);
  fclose(f);
}