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tab = {
    1: {1: "P"},
    2: {1: "PA", 2: "PP"},
    3: {2: "PPA", 3: "PAP"},
    4: {2: "PPAA", 3: "PAPA", 4: "PAAP"},
    5: {3: "PPPAA", 4: "PPAAP", 5: "PAPAP"},
    6: {3: "PPPAAA", 4: "PPAAPA", 5: "PPAAAP", 6: "PPAAPP"},
    7: {4: "PPPPAAA", 3: "PPPAPAA", 5: "PPPAAAP", 6: "PPAAPPA", 7: "PPAAAPP"},
    8: {4: "PPPPAAAA", 3: "PPPAPAAA", 5: "PPPAAPAA", 6: "PPPAAAAP", 7: "PPAAPAAP", 8: "PPAAAAPP"},
    9: {5: "PPPPPAAAA", 4: "PPPPAPAAA", 6: "PPPPAAAAP", 7: "PPPAAPAAP", 8: "PPPAAAAPP", 9: "PPAAPAAPP"},
    10: {5: "PPPPPAAAAA", 4: "PPPPAPAAAA", 6: "PPPPAAAAPA", 7: "PPPPAAAAAP", 8: "PPPAAAAPPA", 9: "PPPAAAAAPP", 10: "PPPAAAAPPP"}
}

REP = "PAPPAA"

t = int(input())
for _ in range(t):
    n, k = map(int, input().split(" "))
    if n <= 10:
        print(tab[n].get(k, "NIE"))
        continue

    if k < 4:
        print("NIE")
        continue

    print("A"*k + REP*((n - k)//len(REP)) + REP[:(n - k)%len(REP)])