#include
int main()
{
while(1)
{
int a,b,c,e,f,m,n,g[15],h[15],i=0,map[15][15],maps[15][15];
char d[15];
scanf("%d%d%d",&a,&b,&c);
if(a==0&&b==0&&c==0)
break;
for(i=0;i<a;i++)
{
getchar();
scanf("%c%d%d",&d[i],&g[i],&h[i]);
}
for(e=0;e<15;e++)
for(f=0;f<15;f++)
{
map[e][f]=1;
maps[e][f]=1;
}
for(e=0;e<15;e++)
map[0][e]=0;
for(e=0;e<=4;e++)
map[e][3]=0;
for(e=0;e<=7;e++)
map[4][e]=0;
for(e=0;e<=4;e++)
map[e][7]=0;
maps[b][c]=2;
for(e=0;e<a;e++)
maps[g[e]][h[e]]=0;
for(e=0;e<a;e++)
{
if(d[e]=='G')
{
m=g[e];
n=h[e];
while(maps[--m][n]&&m>=0)
map[m][n]=0;
map[m][n]=0;
}
if(d[e]=='R')
{
m=g[e];
n=h[e];
while(maps[m][++n]&&n<=13)
map[m][n]=0;
map[m][n]=0;
m=g[e];
n=h[e];
while(maps[m][--n]&&n>=1)
map[m][n]=0;
map[m][n]=0;
m=g[e];
n=h[e];
while(maps[++m][n]&&m<=13)
map[m][n]=0;
map[m][n]=0;
m=g[e];
n=h[e];
while(maps[--m][n]&&m>=1)
map[m][n]=0;
map[m][n]=0;
}
if(d[e]=='C')
{
m=g[e];
n=h[e];
while(maps[++m][n]&&m<=12);
while(maps[++m][n]&&m<=12)
map[m][n]=0;
map[m][n]=0;
m=g[e];
n=h[e];
while(maps[--m][n]&&m>=1);
while(maps[--m][n]&&m>=1)
map[m][n]=0;
m=g[e];
n=h[e];
while(maps[m][++n]&&n<=12);
while(maps[m][++n]&&n<=12)
map[m][n]=0;
map[m][n]=0;
m=g[e];
n=h[e];
while(maps[m][--n]&&n>=1);
while(maps[m][--n]&&n>=1)
map[m][n]=0;
map[m][n]=0;
}
if(d[e]=='H')
{
m=g[e];
n=h[e];
if(maps[m][n+1]&&maps[m][n+1]!=2)
{
map[m+1][n+2]=0;
map[m-1][n+2]=0;
}
if(maps[m][n-1]&&maps[m][n-1]!=2)
{
map[m+1][n-2]=0;
map[m-1][n-2]=0;
}
if(maps[m+1][n]&&maps[m+1][n]!=2)
{
map[m+2][n-1]=0;
map[m+2][n+1]=0;
}
if(maps[m-1][n]&&maps[m-1][n]!=2)
{
map[m-2][n+1]=0;
map[m-2][n-1]=0;
}
}
}
if(map[b][c+1]==0&&map[b][c-1]==0&&map[b+1][c]==0&&map[b-1][c]==0)
printf("YES\n");
else
printf("NO\n");
}
return 0;
}
