if __name__ == '__main__':
    n = int(input())
my_dict = {}
for _ in range(n*2):
    s = str(input())
    if " " in s:
        nameAndPhone = s.split(" ")
        name = nameAndPhone[0]
        phone = nameAndPhone[1]
        my_dict[name] = phone
    else:
        if s in my_dict:
            print(f"{s}={my_dict[s]}")
        else:
            print("Not found")