#include #include #include void solve() { int n, k; std::cin >> n >> k; int m = n / k; std::vector> ans(k); auto turn = [&]() { for (int i = 0; i < k; ++i) { ans[i].push_back(n--); } for (int i = k - 1; i >= 0; --i) { ans[i].push_back(n--); } m -= 2; }; if (m % 2 == 0) { while (n > 0) turn(); } else if (k % 2 == 0) { std::cout << "No\n"; return; } else if (m == 1) { if (k > 1) { std::cout << "No\n"; return; } ans[0].push_back(1); } else { while (m > 3) turn(); int d = k / 2; for (int i = 0; i < k; ++i) { ans[i].push_back(n--); } for (int i = 0; i < k; ++i) { ans[(d + i) % k].push_back(n--); } for (int i = 0; i < k; ++i) { ans[(d + i) * 2 % k].push_back(n--); } } std::cout << "Yes\n"; for (const auto& v : ans) { for (auto x : v) std::cout << x << " "; std::cout << "\n"; } } int main() { std::cin.tie(nullptr); std::ios::sync_with_stdio(false); solve(); return 0; }