dd = {}
unliked = 0

while True :
    what = input().split("-")
    line_one = what[0]
    if "Stop" == line_one:
        break
    who = what[1]
    meal = what[2]


    if line_one == "Like":
        if who in dd and meal not in dd[who]:
            dd[who].append(meal)
        else :
            dd[who] = []
            if meal != "":
                dd[who].append(meal)
    elif line_one == "Unlike":
        if who not in dd:
            print(f"{who} is not at the party.")
        else :
            if meal not in dd[who]:

                print(f"{who} doesn't have the {meal} in his/her collection.")
            else :
                for v in dd[who]:
                    if v.lower() == meal.lower():
                        dd[who].remove(meal)
                        unliked += 1
                        break
                print(f"{who} doesn't like the {meal}.")

sortem = dict(sorted(dd.items(), key=lambda x: (-len(x[1]), x[0])))

for k,v in sortem.items():

    print(f"{k}: {', '.join(v)}")
print(f"Unliked meals: {unliked}")