#include <bits/stdc++.h>
using namespace std;
template <class I>
inline void read(I &x) {
  int f = 1;
  char c;
  for (c = getchar(); c < '0' || c > '9'; c = getchar())
    if (c == '-') f = -1;
  for (x = 0; c >= '0' && c <= '9';
       x = (x << 3) + (x << 1) + (c & 15), c = getchar())
    ;
  x *= f;
}
const int N = 270000, LOG = 20;
int x[N], v[N], L[LOG][N], R[LOG][N], val[N], Lf[N], Rf[N], n, k, tot;
int main() {
  read(n);
  read(v[0]);
  for (int i = 1; i <= n; i++) puts("Impossible");
  return 0;
}
