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

#define FOR(i,a,b) for(auto i=a;i<b;++i)
#define F(a) FOR(i,0l,a)
#define FF(a) FOR(j,0l,a)
#define aa first
#define bb second
#define PB push_back
#define pb push_back
#define MOD ((int)1e9+7)
#define INF (1<<30)
#define LINF (1L<<61)
#define EPS (1e-10)
#define EQ(a,b) (fabs(a-b)<=(fabs(a+b)*EPS))
#ifdef DEBUG
#define DEB puts("DEB!")
#define DPRINT(X) printf("#X: %d\n",X)
#define dout cout
#else
#define DEB do{}while(0)
#define DPRINT(X) do{}while(0)
#define dout 0 && cout
#endif
using ll=long long;
using ull=unsigned long long;
using ld=double;
using vi=vector<int>;
using vvi=vector<vi>;
using pii=pair<int,int>;

vector<vector<char>> p;
int n, m;

bool dr(int x, int y, char c) {
  if (x >= n || x < 0 || y >= n || y < 0) return false;
  p[y][x] = c;
  return true;
}

void tree(int s, int x, int y) {
  if (s == 0) {
    dr(x - 1, y, '_');
    dr(x, y, 'o');
    dr(x + 1, y, '_');
    return;
  }

  dr(x - 1, y, '_');
  dr(x, y, '|');
  dr(x + 1, y, '_');
  for (int i = 1; i <= s; ++ i) {
    dr(x - 1, y - i, '/');
    dr(x, y - i, '|');
    dr(x + 1, y - i, '\\');
  }
  dr(x, y - s - 1, '^');
}

int main(){
  ios::sync_with_stdio(false);cout.tie(0);cin.tie(0);
  while (1) {
    cin >> n >> m;
    p = vector<vector<char>>(n, vector<char>(n, '.'));
    if (!cin) break;
    for (int i = 0; i < m; ++ i) {
      int s, x, y;
      cin >> s >> x >> y;
      tree(s, x, n - y - 1);
    }
    for (int i = 0; i < n + 2; ++ i) cout << '*';
    cout << endl;
    for (int i = 0; i < n; ++ i) {
      cout << '*';
      for (int j = 0; j < n; ++ j) {
        cout << p[i][j];
      }
      cout << '*' << endl;
    }
    for (int i = 0; i < n + 2; ++ i) cout << '*';
    cout << endl;
    cout << endl;
  }



  return 0;
}