#include <iostream>
#include <stdio.h>
#include <math.h>

using namespace std;

void drawPoint(char **& array, int m, int x, int y, char c) {
	if(x<0 || y<0 || x>=m || y>=m) return;	
	array[y][x] = c;
}

void drawTree(char **& array, int m, int s, int x, int y) {
	
	drawPoint(array, m, x-1, y, '_');
	drawPoint(array, m, x, y, '|');
	drawPoint(array, m, x+1, y, '_');	

	for(int i = 0; i < s; i++) {
		drawPoint(array, m, x-1, y+i+1, '/');
		drawPoint(array, m, x, y+i+1, '|');
		drawPoint(array, m, x+1, y+i+1, '\\');	
	}

	drawPoint(array, m, x-1, y+s+1, '.');
	drawPoint(array, m, x, y+s+1, '^');
	drawPoint(array, m, x+1, y+s+1, '.');

}

void drawStump(char **& array, int m, int s, int x, int y) {
	drawPoint(array, m, x-1, y, '_');
	drawPoint(array, m, x, y, 'o');
	drawPoint(array, m, x+1, y, '_');
}

void addToArray(char **& array, int m, int s, int x, int y) {
	if(x>m || y>m || (y+s+2)<0) return;
	if(s>0)
		drawTree(array, m, s, x, y);
	else
		drawStump(array, m, s, x, y);
}

void print(char ** array, int size) {

	for(int i = 0; i < size+2; i++) { 
		cout << "*";
	}
	cout << endl;
	for(int i = 0; i < size; i++) {
		for(int j = 0; j < size; j++) {
			if(j==0) cout << "*";
			cout << array[size-i-1][j];
			if(j == size-1) cout << "*";
		}
		
		cout << endl;
	}
	for(int i = 0; i < size+2; i++) { 
		cout << "*";
	}
	cout << endl;
}

void alloc(char **& array, int size) {
	array = new char*[size];
	for(int i = 0; i < size; i++) {
		array[i] = new char[size];
		for(int j = 0; j < size; j++) {
			array[i][j] = '.'; 
		}
	}
}

int main(void) {

	int m,n;

	while(scanf("%d %d",&m,&n) != EOF) {
		int s, x, y;
		char ** array = NULL;
		alloc(array, m);
		for(int i = 0; i < n; i++) {
			scanf("%d %d %d",&s,&x,&y);
			addToArray(array, m, s, x, y);
		}
		print(array, m);
		cout << endl;	
	}

	return 0;
}