/*
 * Join the Dots NZ01B (via Michael J. Dinneen)
 */
#include <iostream>
#include <string>

using namespace std;

void draw(char grid[21][21], int row, int col, char c)
{
   if (grid[row][col]=='+' || grid[row][col]=='*') grid[row][col]='*';
   else if (grid[row][col]!=' ') grid[row][col]='+';
   else grid[row][col]=c;
}

int main(int argc, char *argv[])
{
  char grid[21][21];
  int cnt=0;
  int r, c;

  while (true)
  {
    cin >> r >> c;
    if (r==0 && c==0) break;

    if (cnt++) cout << endl;  // blank line between grids
 
    for (int i=1; i<=r; i++)  // clear grid
    {
      for (int j=1; j<=c; j++) grid[i][j]=' ';
    }

    int r1, c1, r2, c2;
    cin >> r1 >> c1;

    while (r1!=0 && c1!=0)
    {
      cin >> r2 >> c2;
      if (r2==0 && c2==0) break;

      if (r1 == r2) // horizontal line
      {
         if (c1<=c2)
         for (int i=c1; i<=c2; i++) draw(grid,r1,i,'-');
         if (c1>c2)
         for (int i=c1; i>=c2; i--) draw(grid,r1,i,'-');
      }
      else if (c1 == c2) // vertical line
      {
         if (r1<=r2)
         for (int i=r1; i<=r2; i++) draw(grid,i,c1,'|');
         if (r1>r2)
         for (int i=r1; i>=r2; i--) draw(grid,i,c1,'|');
      }
      else // diagonal lines
      {
        if (r2 > r1 && c2 > c1) // down right
        {
          while (r2 > r1 && c2 > c1) draw(grid,r1++,c1++,'\\');
          draw(grid,r1,c1,'\\');
          if (r1==r2) for (int i=c1+1; i<=c2; i++) draw(grid,r1,i,'-'); 
          if (c1==c2) for (int i=r1+1; i<=r2; i++) draw(grid,i,c1,'|'); 
        }
        else if (r2 > r1 && c2 < c1) // down left
        {
          while (r2 > r1 && c2 < c1) draw(grid,r1++,c1--,'/');
          draw(grid,r1,c1,'/');
          if (r1==r2) for (int i=c1-1; i>=c2; i--) draw(grid,r1,i,'-'); 
          if (c1==c2) for (int i=r1+1; i<=r2; i++) draw(grid,i,c1,'|'); 
        }
        else if (r2 < r1 && c2 > c1) // up right
        {
          while (r2 < r1 && c2 > c1) draw(grid,r1--,c1++,'/');
          draw(grid,r1,c1,'/');
          if (r1==r2) for (int i=c1+1; i<=c2; i++) draw(grid,r1,i,'-'); 
          if (c1==c2) for (int i=r1-1; i>=r2; i--) draw(grid,i,c1,'|'); 
        }
        else if (r2 < r1 && c2 < c1) // up left
        {
          while (r2 < r1 && c2 < c1) draw(grid,r1--,c1--,'\\');
          draw(grid,r1,c1,'\\');
          if (r1==r2) for (int i=c1-1; i>=c2; i--) draw(grid,r1,i,'-'); 
          if (c1==c2) for (int i=r1-1; i>=r2; i--) draw(grid,i,c1,'|'); 
        }
      }
   
      r1 = r2; c1 = c2;
    }
     
    for (int i=1; i<=r; i++)  // print grid
    {
      for (int j=1; j<=c; j++) cout << grid[i][j];
      cout << endl;
    }

  } // next sequence of pictures
        
}