#include <iostream>
using namespace std;
int main() {
	int N,M;
	cin >> N;
	cin >> M;
	int** matrix = new int*[M];
	for (int ii = 0; ii < M; ii++) {
		matrix[ii] = new int[N];
		for (int jj = 0; jj < N; jj++) {
			cin >> matrix[ii][jj];
		}
	}
	int x = 0;
	int y = 0;
	int dir = 0;
	int top = 0, bottom = N - 1, left = 0, right = M - 1;
	bool done = false;
	while (!done) {
		cout << matrix[y][x];
		cout << " ";
		switch (dir) {
		case 0:
			if (x == right) {
				dir++;
				y++;
				top++;
			}
			else x++;
			break;
		case 1:
			if (y == bottom) {
				dir++;
				x--;
				right--;
			}
			else y++; 
			break;
		case 2:
			if (x == left) {
				dir++;
				y--;
				bottom--;
			}
			else x--;
			break;
		case 3:
			if (y == top) {
				dir=0;
				x++;
				left++;
			}
			else y--;
			break;
			
		}
		if (x > right || x < left || y < top || y > bottom) {
			done = true;
		}
	}

}