#include <iostream>
#include <vector>

int main() {
  int m, n;
  std::cin >> m >> n;
  std::vector<std::vector<int>> a(n, std::vector<int>(m));

  int count = 1;
  for (int shift_j = 0; shift_j < m; ++shift_j) {
    int i = 0;
    int j = shift_j;
    while (i < n && j >= 0) {
      a[i][j] = count;
      ++count;
      ++i;
      --j;
    }
  }
  for (int shift_i = 1; shift_i < n; ++shift_i) {
    int i = shift_i;
    int j = m - 1;
    while (i < n && j >= 0) {
      a[i][j] = count;
      ++count;
      ++i;
      --j;
    }
  }

  for (int i = 0; i < n; ++i) {
    for (int j = 0; j < m; ++j) {
      std::cout << a[i][j] << " ";
    }
    std::cout << '\n';
  }
}