t = int(input())
flag = 1
i = 0
while(i < t):
    n, a, b = input().split()
    i = i + 1
    if(int(a)%10 == 0 and int(b)%10 == 0):
        print("NO")
    else:

        if(int(a)*int(b) == int(n)):
            if(len(n) % 2 == 0):
                l=0
                for na in n:
                    if(na in a and l<len(n)/2):
                        pass
                    elif(na in b and l<len(n)):
                        pass
                    else:
                        flag=0
                    l+=1
                        
                
                if(flag):
                    print("YES")
                else:
                    print("NO")
                
        else:
            print("NO")