I,R,O=input,range,print
J=lambda:map(int,I().split())
L=606
for t in R(int(I())):
	N,K=J()
	P1=list(J())
	P2=list(J())
	P3=list(J())
	A=list(J())
	S=I()
	V=abs(P1[0]*P2[1]*P3[2]+P1[1]*P2[2]*P3[0]+P1[2]*P2[0]*P3[1]-P1[1]*P2[0]*P3[2]-P1[0]*	P2[2]*P3[1]-P1[2]*P2[1]*P3[0])
	D=[1if k%6else(k%101<K)*2for k in R(L)]
	for i in R(N-1,-1,-1):
		E=[D[j*(1+A[i])%L]for j in R(L)]
		D=[max(D[i],E[i])for i in R(L)]if S[i]=='P'else[min(D[i],E[i])for i in R(L)]
	O("KDP"[D[V*17%L]]if V else"D")