#include <bits/stdc++.h>
using namespace std;
int m, n, leaves, a[30][150000];
char t[30][50000];

int main() {
	std::ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> m >> n;
	for (int k = 1; k <= n; k++) {
		int i, j;
		cin >> i >> j;
		a[i][j] = 1;
	}
	for (int i = 1; i <= m; i++) {
		for (int j = 1; j <= i << (m - 1); j++) {
			if (a[i][j] == 1) {
				a[i + 1][j * 2 - 1] = a[i + 1][j * 2] = 1;
			}
		}
	}
	leaves = 1 << (m - 1);
	t[m][1] = 'o';
	leaves--;
	int fla = 0, k = 1;
	while (leaves--) {
		if (fla) {
			k += 2;
			t[m][k] = 'o';
		} else {
			k += 4;
			t[m][k] = 'o';

		}
		fla = !fla;
	}
	int fir = 0, nxt = 0;
	for (int i = m - 1; i >= 1; i--) {
		for (int j = 1; j <= k + 1; j++) {
			if (fir && nxt) {
				t[i][(fir + nxt) / 2] = 'o';
				fir = 0;
				nxt = 0;
			}
			if (fir == 0 && t[i + 1][j] == 'o') {
				fir = j;
			} else if (t[i + 1][j] == 'o') {
				nxt = j;
			}
		}
	}
	for (int i = 1; i <= m; i++) {
		int cnt = 0;
		string c(k + 10, char(32));
		for (int j = 1; j <= k; j++) {
			if (t[i][j] == 'o') {
				cnt++;
				if (a[i][cnt] == 1) {
					cout << char(32);

				} else {
					cout << "o";
					if (!a[i + 1][cnt * 2 - 1])
						c[j - 1] = '/';
					if (!a[i + 1][cnt * 2])
						c[j + 1] = '\\';
				}
			} else {
				cout << char(32);
			}
		}
		if (i == m)
			break;
		fla = 0;
		while (1) {
			string c2(k + 10, char(32));
			cout << "\n";
			for (int j = 1; j <= k; j++)
				cout << c[j];
			for (int j = 1; j <= k; j++) {
				if ((t[i + 1][j - 1] == 'o' && c[j] == '/') || (t[i + 1][j + 1] == 'o' && c[j] == '\\')) {
					fla = 1;
					break;
				}
				if (c[j] == '/') {
					c2[j - 1] = '/';
				} else if (c[j] == '\\') {
					c2[j + 1] = '\\';
				}
			}
			c = c2;
			if (fla)
				break;
		}
		cout << "\n";
	}
	return 0;
}

https://www.luogu.com.cn/record/164443910