n=int(input())
for ii in range(n):
    m=int(input())
    num=list(map(int,input().split()))
    group=list(map(int,input().split()))
    s=[]
    ss=[]
    for i in group:
        if i not in s:
            s.append(i)
    # print(s)
    for i in num:
        if i not in ss:
            ss.append(i)
    # print(ss)
    s0=sorted(s)
    s1=sorted(ss)
    for i in s0:
        print("%d={"%i,end='')
        first=1
        for j in s1:
            count=0
            for k in range(m):
                if(num[k]==j and group[k]==i):
                    count+=1
            if(first==1):
                first=0
                print("%d=%d" % (j, count), end='')
            else:
                print(",%d=%d"%(j,count),end='')
        print("}")