import sys
input = sys.stdin.readline

def isqrt(n):
    ok = 0
    ng = 32
    while(abs(ok - ng) > 1):
        mid = (ok + ng) >> 1
        if(mid ** 2 <= n):
            ok = mid
        else:
            ng = mid
    return ok


query = [int(input()) for _ in [0] * int(input())]

for n in query:
    if(isqrt(n) ** 2 == n):
        print('P')
    else:
        print('K')