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#include <cstdio>
int n, t;

bool run(bool isAfter, int p = 0) {
  return scanf("%d", &p) > 0 ? (isAfter || printf("%d ", p)) &&
    (run(isAfter) && printf("%d ", p)) : isAfter;
}

int main() {
  scanf("%d%d", &n, &t);
  run(t % 2);
}