test_cases = int(input())
string1, string2 = map(str,input().split(' '))
for x in range (0,test_cases):
    list_s1 = list(string1)
    list_s2 = list(string2)
    new_list1 = sorted(list_s1)
    new_list2 = sorted(list_s2)
    print(new_list1,new_list2)

test_cases = int(input())
string1, string2 = map(str,input().split(' '))
for x in range (0,test_cases):
    list_s1 = list(string1)
    list_s2 = list(string2)
    new_list1 =  list_s1.sort()
    new_list2 = list_s2.sort()
    print(new_list1,new_list2)