import sys
input = sys.stdin.readline
MOD = 101
INV2, INV3 = pow(2, MOD - 2, MOD), pow(3, MOD - 2, MOD)


def det(A):
    ret = 0
    B = A[:] + [A[0]] + [A[1]]
    for i in range(3):
        ret += B[i][0] * B[i+1][1] * B[i+2][2]
        ret -= B[i][2] * B[i+1][1] * B[i+2][0]
    return ret


def solve(N, K, P, a, s):
    d = abs(det(P))
    if(d == 0):
        return 'D'
    dp = [[-1] * 4 for _ in [0] * MOD]
    for j in range(MOD):
        dp[j][3] = int(j >= K)
    for i in range(N - 1, -1, -1):
        ndp = [[-1] * 4 for _ in [0] * MOD]
        player_is_koa = (s[i] == 'K')
        val = a[i] + 1
        val_div2, val_div3 = (val % 2 == 0), (val % 3 == 0)
        for j in range(MOD):
            for k in range(4):
                results = [dp[j][k], dp[j * val % MOD][k | val_div2 | (val_div3 << 1)]]
                if(player_is_koa):
                    if(1 in results):
                        ndp[j][k] = 1
                    elif(-1 in results):
                        ndp[j][k] = -1
                    else:
                        ndp[j][k] = 0
                else:
                    if(0 in results):
                        ndp[j][k] = 0
                    elif(-1 in results):
                        ndp[j][k] = -1
                    else:
                        ndp[j][k] = 1
        dp = ndp[:]
    div2, div3 = (d % 2 == 0), (d % 3 == 0)
    stat_init = dp[d % MOD * INV2 * INV3 % MOD][div2 | (div3 << 1)]
    if(stat_init == 1):
        return 'K'
    elif(stat_init == 0):
        return 'P'
    return 'D'


t = int(input())
for _ in [0] * t:
    N, K = map(int, input().split())
    P = [list(map(int, input().split())) for _ in [0] * 3]
    a = list(map(int, input().split()))
    s = input()[:-1]
    print(solve(N, K, P, a, s))