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t = int(input())
for _ in range(t):
    n, k = map(int, input().split())
    if k == 1 and n > 2:
        print("NIE")
    elif k == 1 and n == 2:
        print("PA")
    elif k == 1 and n == 1:
        print("A")
    elif k == 2:
        if n > 4:
            print("NIE")
        else:
            print("AAPP"[:n])
    elif k == 3:
        napis = "PPPAPAAA"
        if n > 8:
            print("NIE")
        else:
            print(napis[:n])
    else:
        napis = "P" * k
        napis += "APAAPP" * ((n - k)//6)
        napis += "APAAPP"[:(n - k)%6]
        print(napis)