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#include <cstdio>

int main() {
  int n;
  int depth = 32;

  scanf("%d", &n);

  int last = 1 + 2*depth + 1;

  printf("%d\n", last);
  puts("2 3");

  for (int i=0; i<depth - 1; i++) {
    printf("%d %d\n", i*2 + 3, n%2 ? last : -1);
    printf("%d %d\n", (i+1)*2 + 2, (i+1)*2 + 3);
    n /= 2;
  }

  puts("-1 -1");
  puts("-1 -1");
  puts("-1 -1");
}