# 1 "main.cpp" # 1 "" # 1 "" # 1 "main.cpp" # 1 "/Users/yosupo/Programs/Algorithm/expander/dummy_include/bits/stdc++.h" 1 #include # 5 "main.cpp" 2 using namespace std; using uint = unsigned int; using ll = long long; using ull = unsigned long long; constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); } template using V = vector; template using VV = V>; # 1 "/Users/yosupo/Programs/Algorithm/src/util/fast_io.h" 1 struct Scanner { FILE* fp = nullptr; char line[(1 << 15) + 1]; size_t st = 0, ed = 0; void reread() { memmove(line, line + st, ed - st); ed -= st; st = 0; ed += fread(line + ed, 1, (1 << 15) - ed, fp); line[ed] = '\0'; } bool succ() { while (true) { if (st == ed) { reread(); if (st == ed) return false; } while (st != ed && isspace(line[st])) st++; if (st != ed) break; } if (ed - st <= 50) reread(); return true; } template ::value, int> = 0> bool read_single(T& ref) { if (!succ()) return false; while (true) { succ(); size_t sz = 1; while (st + sz < ed && !isspace(line[st + sz])) sz++; ref.append(line + st, sz); st += sz; if (st != ed) break; } return true; } template ::value, int> = 0> bool read_single(T& ref) { if (!succ()) return false; bool neg = false; if (line[st] == '-') { neg = true; st++; } ref = T(0); while (isdigit(line[st])) { ref = 10 * ref + (line[st++] - '0'); } if (neg) ref = -ref; return true; } template bool read_single(V& ref) { for (auto& d : ref) { if (!read_single(d)) return false; } return true; } void read() {} template void read(H& h, T&... t) { bool f = read_single(h); assert(f); read(t...); } Scanner(FILE* _fp) : fp(_fp) {} }; struct Printer { public: template void write() {} template void write(const H& h, const T&... t) { if (F) write_single(' '); write_single(h); write(t...); } template void writeln(const T&... t) { write(t...); write_single('\n'); } Printer(FILE* _fp) : fp(_fp) {} ~Printer() { flush(); } private: static constexpr size_t SIZE = 1 << 15; FILE* fp; char line[SIZE], small[50]; size_t pos = 0; void flush() { fwrite(line, 1, pos, fp); pos = 0; } void write_single(const char& val) { if (pos == SIZE) flush(); line[pos++] = val; } template ::value, int> = 0> void write_single(const T& val) { for (char c : val) write_single(c); } template ::value, int> = 0> void write_single(T val) { if (pos > (1 << 15) - 50) flush(); if (val == 0) { write_single('0'); return; } if (val < 0) { write_single('-'); val = -val; } size_t len = 0; while (val) { small[len++] = char('0' + (val % 10)); val /= 10; } reverse(small, small + len); memcpy(line + pos, small, len); pos += len; } template void write_single(const V& val) { auto n = val.size(); for (size_t i = 0; i < n; i++) { if (i) write_single(' '); write_single(val[i]); } } }; # 15 "main.cpp" 2 # 40 "main.cpp" template ostream& operator<<(ostream& os, const pair& p) { return os << "P(" << p.first << ", " << p.second << ")"; } template ostream& operator<<(ostream& os, const V& v) { os << "["; for (auto d : v) os << d << ", "; return os << "]"; } Scanner sc = Scanner(stdin); void ans(VV g) { cout << "Yes\n"; for (auto v: g) { for (auto d: v) { cout << d + 1 << " "; } cout << "\n"; } exit(0); } void imp() { cout << "No\n"; exit(0); } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n, k; sc.read(n, k); int l = n / k; VV g(k, V(l)); int cnt = 0; if (k == 1) { for (int i = 0; i < l; i++) { g[0][i] = cnt++; } ans(g); } if (l == 1) imp(); if (l % 2 == 0) { for (int i = 0; i < l; i++) { for (int _j = 0; _j < k; _j++) { int j = (i % 2 == 0) ? _j : k - 1 - _j; g[j][i] = cnt++; } } ans(g); } if (k % 2 == 0) imp(); { for (int _j = 0; _j < k; _j++) { int j = _j; g[j][0] = cnt++; } } { for (int _j = 0; _j < k; _j++) { int j = (_j + k / 2 + 1) % k; g[j][1] = cnt++; } } { for (int _j = 0; _j < k; _j++) { int j = (_j % 2 == 0) ? (k / 2 - (_j / 2)) : (k - 1 - (_j / 2)); g[j][2] = cnt++; } } for (int i = 3; i < l; i++) { for (int _j = 0; _j < k; _j++) { int j = (i % 2 == 0) ? _j : k - 1 - _j; g[j][i] = cnt++; } } ans(g); return 0; }