#include "bits/stdc++.h" using namespace std; #define all(x) begin(x),end(x) template ostream& operator<<(ostream &os, const pair &p) { return os << '(' << p.first << ", " << p.second << ')'; } template::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { string sep; for (const T &x : v) os << sep << x, sep = " "; return os; } #define debug(a) cerr << "(" << #a << ": " << a << ")\n"; typedef long long ll; typedef vector vi; typedef vector vvi; typedef pair pi; const int mxN = 1<<10, oo = 1e9; int g[mxN][mxN]; int main() { // ok xor of everything is 0 or ios_base::sync_with_stdio(false); cin.tie(NULL); int n; cin >> n; // cout << n << ": " << '\n'; int xr=0; for(int i=0;i<1<<(n*2);++i) xr^=i; int len = 1<<(n); int want = len%2; // independent for the bits! // helft van de bits moet aan, even aantal in elke kolom/rij // do bit pattern across rows and across columns // need to put the ones if(xr!=want or n==1) { cout << "-1\n"; exit(0); } for(int i=0;i=len/2) g[i][j]^=1; if(i==j) g[i][j]^=1; g[i][j]^=j<=len/2)<<(2*n-1); } } for(int i=0;i