ForceBook

forces = {}

def check_value(d: dict, us: str):
    for (x, y) in d.items():
        if us in d[x]:
            return True


def find_key(d: dict, val: str):
    for x, y in d.items():
        if val in y:
            return x


while True:
    data = input()
    if data == 'Lumpawaroo':
        break
    if '|' in data:
        data = data.split(' | ')
        side = data[0]
        user = data[1]
        if side not in forces:
            if not check_value(forces, user):
                forces[side] = [user]
        elif side in forces and user not in forces[side]:
            forces[side].append(user)
    elif '->' in data:
        data = data.split(' -> ')
        user = data[0]
        side = data[1]
        if not check_value(forces, user) and side in forces:
            forces[side].append(user)
            print(f'{user} joins the {side} side!')
        elif not check_value(forces, user) and side not in forces:
            forces[side] = [user]
            print(f'{user} joins the {side} side!')
        elif check_value(forces, user):
            key = find_key(forces, user)
            if side in forces:
                forces[key].remove(user)
                forces[side].append(user)
                print(f'{user} joins the {side} side!')
            else:
                forces[side] = [user]
                forces[key].remove(user)
                print(f'{user} joins the {side} side!')

order = sorted(sorted(forces, key=lambda x: x), key=lambda x: len(forces[x]), reverse=True)

for i in order:
    length = len(forces[i])
    if length > 0:
        print(f'Side: {i}, Members: {length}')
        user_order = sorted(forces[i], key=lambda x: x)
        [print(f'! {x}') for x in user_order]