class ModP:
    def __init__(self,p,r):
        self.p = p
        self.r = r
        self.log = {}
        self.exp = {}
        
        self.log[0] = -1
        self.exp[-1] = 0
        x = 1
        for i in range(p-1):
            self.log[x] = i
            self.exp[i] = x
            x = (x*r)%p
    
    def multi(self,a,b):
        if a==-1 or b==-1:
            return -1
        else:
            return (a+b)%(self.p-1)
    
    def rec(self,a):
        return (-a)%(self.p-1)
    
    def plus(self,a,b):
        if a==-1:
            return b
        elif b==-1:
            return a
        else:
            return self.log[(self.exp[a]+self.exp[b])%self.p]
    
    def opp(self,a):
        if a==-1:
            return -1
        else:
            return self.log[self.p-self.exp[a]]
    
    def sqrt(self,a):
        if a==-1:
            return -1
        elif a%2==1:
            return -2
        else:
            return a/2
    
    def solve(self,a,b,c):
        a,b,c = self.log[a],self.log[b],self.log[c]
        y = self.sqrt(self.plus(self.multi(b,b),self.opp(self.multi(self.log[4%self.p],self.multi(a,c)))))
        if y==-2:
            return -1
        elif y==-1:
            return self.exp[self.multi(self.opp(b),self.rec(self.multi(self.log[2],a)))]
        else:
            x = self.exp[self.multi(self.plus(self.opp(b),y),self.rec(self.multi(self.log[2],a)))]
            y = self.exp[self.multi(self.opp(self.plus(b,y)),self.rec(self.multi(self.log[2],a)))]
            if x>y: x,y = y,x
            return "%d %d"%(x,y)

def main():
    P,R = list(map(int,input().split()))
    pclass = ModP(P,R)
    Q = int(input())
    for i in range(Q):
        a,b,c = list(map(int,input().split()))
        print(pclass.solve(a,b,c))

if __name__ == '__main__':
    main()