#include <bits/stdc++.h>
using namespace std;

int M, N;
char grid[100][100];

void init()
{
	for(int x = 0; x < M; x++)
		for(int y=0; y<M;y++)
			grid[x][y] = '.';
}

void putPixel(int x, int y, char c)
{
	if(x < 0 || y < 0 || x >= M || y >= M)
		return;
		
	grid[x][y] = c;
}

void draw(int s, int x, int y)
{
	if(s == 0)
	{
		putPixel(x-1,y, '_');
		putPixel(x,y, 'o');
		putPixel(x+1,y, '_');
	}
	else
	{
		// roots
		putPixel(x-1,y, '_');
		putPixel(x,y, '|');
		putPixel(x+1,y, '_');
		
		for(int i = 1; i <= s; i++)
		{
			putPixel(x-1, y+i, '/');
			putPixel(x, y+i, '|');
			putPixel(x+1, y+i, '\\');
		}
		
		// top
		putPixel(x, y+s + 1, '^');
	}
}

void finalDraw()
{
	for(int x = 0; x < M + 2; x++)
		printf("*");
	printf("\n");
	
	for(int y = M - 1; y >= 0; y--)
	{
		printf("*");
		for(int x = 0; x < M; x++)
			printf("%c", grid[x][y]);
		printf("*");
		printf("\n");
	}
	
	for(int x = 0; x < M + 2; x++)
		printf("*");
	printf("\n");
}

int main() 
{
	while(cin >> M >> N)
	{
		init();
		while(N -- > 0)
		{
			int s, x, y;
			cin >> s >> x >> y;
			draw(s,x,y);
		}
		finalDraw();
		printf("\n");
	}
}