#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

#define rd_init() char*rp=({char*mmap();mmap(0l,1l<<25,1,2,0,0ll);})
#define rd() ({int _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})
#define rd_signed() ({int _s=*rp=='-'&&++rp,_v=rd();_s?-_v:_v;})
#define rep(v,e) for(typeof(e) v=0;v<e;++v)
#define reps(v,s,e) for(typeof(e) v=s;v<e;++v)
#define rrep(v,e) for(typeof(e) v=e;v--;)
#define chmin(v,a) (v=v<=a?v:a)
#define chmax(v,a) (v=v>=a?v:a)

char wbuf[1<<25];
int a[10000];

int main(){
	char*wp=wbuf;
	rd_init();
	int t=rd();
	while(t--){
		int n=rd();
		int k=rd();
		long h;
		{
			long p11=rd_signed(),p12=rd_signed(),p13=rd_signed();
			long p21=rd_signed(),p22=rd_signed(),p23=rd_signed();
			long p31=rd_signed(),p32=rd_signed(),p33=rd_signed();
			h=p11*(p22*p33-p23*p32)+p12*(p23*p31-p21*p33)+p13*(p21*p32-p22*p31);
			if(h<0) h=-h;
		}
		rep(i,n){
			a[i]=rd();
		}
		char*s=rp+n;
		rp=s+1;
		if(h){
			h%=606;
			int z;
			if(n==1){
				int b=h*(a[0]+1)%606;
				z=
					s[-1]=='K'?
						h%6==0&&h>=k*6?1:
						b%6==0&&b>=k*6?1:
						h%6?0:-1
					:
						h%6==0&&h<k*6?-1:
						b%6==0&&b<k*6?-1:
						h%6?0:1;
			}else{
				char d[606];
				rep(j,101){
					d[j*6+0]=j>=k?1:-1;
					d[j*6+1]=0;
					d[j*6+2]=0;
					d[j*6+3]=0;
					d[j*6+4]=0;
					d[j*6+5]=0;
				}
				rrep(i,n){
					char e[606];
					rep(j,606){
						e[j]=d[j];
					}
					int b=a[i]+1;
					if(*--s=='K'){
						int c=b;
						reps(j,1,606){
							chmax(d[j],e[c]);
							c+=b; c-=c<606?0:606;
						}
					}else{
						int c=b;
						reps(j,1,606){
							chmin(d[j],e[c]);
							c+=b; c-=c<606?0:606;
						}
					}
				}
				z=d[h];
			}
			*wp++=z<0?'P':z==0?'D':'K';
		}else{
			*wp++='D';
		}
		*wp++='\n';
	}
	write(1,wbuf,wp-wbuf);
	_exit(0);
}