#include using namespace std; using lint = long long int; using P = pair; using PL = pair; #define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i=i##_begin_;i--) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) #define ALL(a) (a).begin(),(a).end() constexpr int MOD = 1000000007; constexpr lint B1 = 1532834020; constexpr lint M1 = 2147482409; constexpr lint B2 = 1388622299; constexpr lint M2 = 2147478017; constexpr int INF = 2147483647; void yes(bool expr) {cout << (expr ? "Yes" : "No") << "\n";} int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); int N; cin >> N; REP(i, N) { int tmp = (i*2)%N + 1; REP(j, N) { cout << tmp; if(j != N-1) cout << " "; tmp = (tmp-2+N)%N + 1; } cout << "\n"; } }