有一群喜欢带小红帽的家伙举行了一场别开生面的聚会，然而某些人被邪恶的WM讲帽子上涂了大灰狼的图标，可是每个人看不到自己头上的帽子有没有被涂，他们只能看到其他人头上的帽子是不是大灰狼的图案，现在告诉你每个人看到的别人头上大灰狼帽子的数量，聪明的你啊，能不能判断出来一共有多少个人头上被汪淼涂了可恶的大灰狼呢，当然如果你发现有些人撒谎的话，就直接输出-1吧-A group of like guys held a special party with Little Red Riding Hood, however, some people are evil WM stresses hat painted on the icon of the big bad wolf, but everyone can not see the hat of his head was not coated, they can only see the hat of others is not a big bad wolf pattern, and now tell everyone you see on others the number of wolf hat, smart, can not be judged a number of personal head Wang Miao painted evil one, of course, if you find that some people lie, on the direct output-1