one of my friends picked the mobile phone call.undortunately,there was no line.we were hopeless and couldn't find us forever that stuck cave.we tried to sleep and forgot everything .when we woke up.we took our shovels and axes to dig the thick icy snow at the mouth of the cave so that we could go out.we couldn't break even a piece of it beause it what frozen last night.after two dayswe noticedwe could breathe easily in the cave.we found a way to go out.when were at the top pf the mountain.we widn't cry out but we only  watch the stunning  scenery.