> #include	<stdlib.h>
> #include	<stdio.h>
> 
> int
> main()
> {int i,j,x,y,xx,yy,d,t,m,n,a[200][200][4],went[200][200],p[4][2]={{0,1},{1,0},{0,-1},{-1,0}},h[40000],step,flag,k,minx,miny,maxx,maxy;
> long result,sum;
> float x1,y1;
> scanf("%d%d",&m,&n);
> while ((m!=-1)&&(n!=-1))
> {memset(a,0,160000*sizeof(int));
> minx=200;miny=200;maxx=0;maxy=0;
> for (i=0;i<m;i++  )
> {scanf("%d%d%d%d",&x,&y,&d,&t);
> if ( x>maxx ) maxx=x;if ( x<minx ) minx=x;
> if ( y>maxy ) maxy=y;if ( y<miny ) miny=y;
> if (d==0)
>   for ( j=0;j<t;j++)  {a[x][y][2]=1;a[x][y-1][0]=1;x++;}
>    else   for ( j=0;j<t;j++ ) {a[x][y][3]=1;a[x-1][y][1]=1;y++;}
> }
> for ( i=0;i<n;i++ )
>     {scanf("%d%d%d",&x,&y,&d);
>      if ( d==0)  {a[x][y][2]=2;a[x][y-1][0]=2;}
>      else {a[x][y][3]=2;a[x-1][y][1]=2;}
>     }
> scanf("%f%f",&x1,&y1);
> x=x1;y=y1;
> step=0;h[step]=0;flag=0;k=0;sum=0;result=50000;
> memset(went,0,40000*sizeof(int));
> while (step>=0)
> {
> if ( k>3 )   {step--;k=h[step];went[x][y]=0;x=x-p[k][0];y=y-p[k][1];
> 		  if ( a[x][y][k]==2 ) sum--;
> 		  k++;
> 		  }
> else   {xx=x+p[k][0];yy=y+p[k][1];
> 	   if (((a[x][y][k]==0)||(a[x][y][k]==2)) && (went[xx][yy]==0))
> 		 { went[x][y]=1;
> 		   if ( a[x][y][k]==2 ) sum++;
> 		   if (xx>=maxx||xx<minx||yy>=maxy||yy<miny) {flag=1;
> 					if (sum<result)   result=sum;
> 					if ( a[x][y][k]==2 ) sum--;}
> 		   else {
> 		   x=xx;y=yy;h[step]=k;step++;k=-1;}
> 		 }
> 	   k++;
> 	  }
> }
> if ( flag==0 ) 	printf("%d\n",-1);
> else printf("%d\n",result);
> scanf("%d%d",&m,&n);
> }
> return 1;
> }